Done

Backup/RichTextEditor.sln

+
+Microsoft Visual Studio Solution File, Format Version 9.00
+# Visual Studio 2005
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RichTextEditor", "RichTextEditor\RichTextEditor.csproj", "{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Backup/RichTextEditor/Program.cs

+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+
+namespace RichTextEditor
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new frmMain());
+        }
+    }
+}

Backup/RichTextEditor/Properties/AssemblyInfo.cs

+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("RichTextEditor")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("MCN")]
+[assembly: AssemblyProduct("RichTextEditor")]
+[assembly: AssemblyCopyright("Copyright © MCN 2006")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("1045fb1f-6ef6-4435-a744-9b984463349c")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Backup/RichTextEditor/Properties/Resources.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:2.0.50727.42
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace RichTextEditor.Properties
+{
+
+
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "2.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("RichTextEditor.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}

Backup/RichTextEditor/Properties/Resources.resx

+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file

Backup/RichTextEditor/Properties/Settings.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:2.0.50727.42
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace RichTextEditor.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "8.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

Backup/RichTextEditor/Properties/Settings.settings

+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

Backup/RichTextEditor/Properties/app.manifest

+<?xml version="1.0" encoding="utf-8"?>
+<asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <applicationRequestMinimum>
+        <PermissionSet class="System.Security.PermissionSet" version="1" Unrestricted="true" ID="Custom" SameSite="site" />
+        <defaultAssemblyRequest permissionSetReference="Custom" />
+      </applicationRequestMinimum>
+    </security>
+  </trustInfo>
+</asmv1:assembly>
\ No newline at end of file

Backup/RichTextEditor/RichTextEditor.csproj

+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.50727</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>RichTextEditor</RootNamespace>
+    <AssemblyName>RichTextEditor</AssemblyName>
+    <StartupObject>RichTextEditor.Program</StartupObject>
+    <ApplicationIcon>alabama.ico</ApplicationIcon>
+    <TargetZone>LocalIntranet</TargetZone>
+    <GenerateManifests>true</GenerateManifests>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="ExtendedRichTextBox, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\RichTextEditor\ExtendedRichTextBox\bin\Release\ExtendedRichTextBox.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="frmFind.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="frmFind.Designer.cs">
+      <DependentUpon>frmFind.cs</DependentUpon>
+    </Compile>
+    <Compile Include="frmMain.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="frmMain.Designer.cs">
+      <DependentUpon>frmMain.cs</DependentUpon>
+    </Compile>
+    <Compile Include="frmReplace.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="frmReplace.Designer.cs">
+      <DependentUpon>frmReplace.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="frmFind.resx">
+      <SubType>Designer</SubType>
+      <DependentUpon>frmFind.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="frmMain.resx">
+      <SubType>Designer</SubType>
+      <DependentUpon>frmMain.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="frmReplace.resx">
+      <SubType>Designer</SubType>
+      <DependentUpon>frmReplace.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <BaseApplicationManifest Include="Properties\app.manifest" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="alabama.ico" />
+    <Content Include="Graphics\binoc.ico" />
+    <Content Include="Graphics\bold.ico" />
+    <Content Include="Graphics\centre.ico" />
+    <Content Include="Graphics\copy.ico" />
+    <Content Include="Graphics\cut.ico" />
+    <Content Include="Graphics\delete.ico" />
+    <Content Include="Graphics\find_dc2.ico" />
+    <Content Include="Graphics\find_doc.ico" />
+    <Content Include="Graphics\font.ico" />
+    <Content Include="Graphics\font_big.ico" />
+    <Content Include="Graphics\font_sml.ico" />
+    <Content Include="Graphics\font_wid.ico" />
+    <Content Include="Graphics\help.ico" />
+    <Content Include="Graphics\help_ptr.ico" />
+    <Content Include="Graphics\italic.ico" />
+    <Content Include="Graphics\justify.ico" />
+    <Content Include="Graphics\left.ico" />
+    <Content Include="Graphics\lst2icon.ico" />
+    <Content Include="Graphics\mail.ico" />
+    <Content Include="Graphics\mail2.ico" />
+    <Content Include="Graphics\new.ico" />
+    <Content Include="Graphics\open.ico" />
+    <Content Include="Graphics\paste.ico" />
+    <Content Include="Graphics\print.ico" />
+    <Content Include="Graphics\print2.ico" />
+    <Content Include="Graphics\redo.ico" />
+    <Content Include="Graphics\refresh.ico" />
+    <Content Include="Graphics\right.ico" />
+    <Content Include="Graphics\save.ico" />
+    <Content Include="Graphics\toupper.ico" />
+    <Content Include="Graphics\underlne.ico" />
+    <Content Include="Graphics\undo.ico" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
\ No newline at end of file

Backup/RichTextEditor/RichTextEditor.csproj.user

+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ProjectView>ProjectFiles</ProjectView>
+    <PublishUrlHistory>http://localhost/RichTextEditor/</PublishUrlHistory>
+    <InstallUrlHistory>
+    </InstallUrlHistory>
+    <SupportUrlHistory>
+    </SupportUrlHistory>
+    <UpdateUrlHistory>
+    </UpdateUrlHistory>
+    <BootstrapperUrlHistory>
+    </BootstrapperUrlHistory>
+    <ApplicationRevision>0</ApplicationRevision>
+    <FallbackCulture>en-US</FallbackCulture>
+    <VerifyUploadedFiles>true</VerifyUploadedFiles>
+  </PropertyGroup>
+</Project>
\ No newline at end of file

Backup/RichTextEditor/frmFind.Designer.cs

+namespace RichTextEditor
+{
+    partial class frmFind
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(frmFind));
+            this.Label1 = new System.Windows.Forms.Label();
+            this.txtSearchTerm = new System.Windows.Forms.TextBox();
+            this.chkMatchCase = new System.Windows.Forms.CheckBox();
+            this.btnFind = new System.Windows.Forms.Button();
+            this.btnFindNext = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // Label1
+            // 
+            this.Label1.AutoSize = true;
+            this.Label1.Location = new System.Drawing.Point(23, 26);
+            this.Label1.Name = "Label1";
+            this.Label1.Size = new System.Drawing.Size(71, 13);
+            this.Label1.TabIndex = 1;
+            this.Label1.Text = "Search Term:";
+            // 
+            // txtSearchTerm
+            // 
+            this.txtSearchTerm.Location = new System.Drawing.Point(26, 42);
+            this.txtSearchTerm.Name = "txtSearchTerm";
+            this.txtSearchTerm.Size = new System.Drawing.Size(252, 20);
+            this.txtSearchTerm.TabIndex = 2;
+            this.txtSearchTerm.TextChanged += new System.EventHandler(this.txtSearchTerm_TextChanged);
+            // 
+            // chkMatchCase
+            // 
+            this.chkMatchCase.AutoSize = true;
+            this.chkMatchCase.Location = new System.Drawing.Point(26, 73);
+            this.chkMatchCase.Name = "chkMatchCase";
+            this.chkMatchCase.Size = new System.Drawing.Size(83, 17);
+            this.chkMatchCase.TabIndex = 5;
+            this.chkMatchCase.Text = "Match Case";
+            this.chkMatchCase.UseVisualStyleBackColor = true;
+            // 
+            // btnFind
+            // 
+            this.btnFind.Location = new System.Drawing.Point(311, 42);
+            this.btnFind.Name = "btnFind";
+            this.btnFind.Size = new System.Drawing.Size(75, 21);
+            this.btnFind.TabIndex = 6;
+            this.btnFind.Text = "&Find";
+            this.btnFind.UseVisualStyleBackColor = true;
+            this.btnFind.Click += new System.EventHandler(this.btnFind_Click);
+            // 
+            // btnFindNext
+            // 
+            this.btnFindNext.Enabled = false;
+            this.btnFindNext.Location = new System.Drawing.Point(311, 73);
+            this.btnFindNext.Name = "btnFindNext";
+            this.btnFindNext.Size = new System.Drawing.Size(75, 21);
+            this.btnFindNext.TabIndex = 7;
+            this.btnFindNext.Text = "Find &Next";
+            this.btnFindNext.UseVisualStyleBackColor = true;
+            this.btnFindNext.Click += new System.EventHandler(this.btnFindNext_Click);
+            // 
+            // frmFind
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(398, 112);
+            this.Controls.Add(this.btnFindNext);
+            this.Controls.Add(this.btnFind);
+            this.Controls.Add(this.chkMatchCase);
+            this.Controls.Add(this.txtSearchTerm);
+            this.Controls.Add(this.Label1);
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.Name = "frmFind";
+            this.Text = "RTE - Find Text";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        internal System.Windows.Forms.Label Label1;
+        internal System.Windows.Forms.TextBox txtSearchTerm;
+        internal System.Windows.Forms.CheckBox chkMatchCase;
+        internal System.Windows.Forms.Button btnFind;
+        internal System.Windows.Forms.Button btnFindNext;
+    }
+}
+

Backup/RichTextEditor/frmFind.cs

+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+
+
+namespace RichTextEditor
+{
+    public partial class frmFind : Form
+    {
+        // local member variable to hold main form
+        frmMain mMain;
+        
+
+        // default constructor
+        public frmFind()
+        {
+            InitializeComponent();
+        }
+
+
+        // overloaded constructor - permits passing in main form
+        public frmFind(frmMain f)
+        {
+            InitializeComponent();
+            mMain = f;
+        }
+
+
+
+
+        private void btnFind_Click(object sender, System.EventArgs e)
+        {
+            try
+            {
+                int StartPosition;
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtSearchTerm.Text, SearchType);
+
+                if (StartPosition == 0)
+                {
+                    MessageBox.Show("String: " + txtSearchTerm.Text.ToString() + " not found", "No Matches", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                    return;
+                }
+
+                mMain.rtbDoc.Select(StartPosition, txtSearchTerm.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+                btnFindNext.Enabled = true;
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+        }
+
+        
+
+        
+        private void btnFindNext_Click(object sender, System.EventArgs e)
+        {
+            try
+            {
+                int StartPosition = mMain.rtbDoc.SelectionStart + 2;
+
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                //StartPosition = Microsoft.VisualBasic.Strings.InStr(StartPosition, mMain.rtbDoc.Text, txtSearchTerm.Text, SearchType);
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtSearchTerm.Text, StartPosition, SearchType);
+
+                if (StartPosition == 0 || StartPosition < 0)
+                {
+                    MessageBox.Show("String: " + txtSearchTerm.Text.ToString() + " not found", "No Matches", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                    return;
+                }
+
+                mMain.rtbDoc.Select(StartPosition, txtSearchTerm.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+        }
+
+
+        private void txtSearchTerm_TextChanged(object sender, EventArgs e)
+        {
+            btnFindNext.Enabled = false;
+        }
+
+
+    }
+}
\ No newline at end of file

Backup/RichTextEditor/frmFind.resx

+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Drawing" name="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+    <value>
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+        AAAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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+        /4OD///BB///4A////Af///4
+</value>
+  </data>
+</root>
\ No newline at end of file

Backup/RichTextEditor/frmReplace.Designer.cs

+namespace RichTextEditor
+{
+    partial class frmReplace
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(frmReplace));
+            this.Label1 = new System.Windows.Forms.Label();
+            this.txtSearchTerm = new System.Windows.Forms.TextBox();
+            this.Label2 = new System.Windows.Forms.Label();
+            this.txtReplacementText = new System.Windows.Forms.TextBox();
+            this.chkMatchCase = new System.Windows.Forms.CheckBox();
+            this.btnFind = new System.Windows.Forms.Button();
+            this.btnFindNext = new System.Windows.Forms.Button();
+            this.btnReplace = new System.Windows.Forms.Button();
+            this.btnReplaceAll = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // Label1
+            // 
+            this.Label1.AutoSize = true;
+            this.Label1.Location = new System.Drawing.Point(8, 18);
+            this.Label1.Name = "Label1";
+            this.Label1.Size = new System.Drawing.Size(71, 13);
+            this.Label1.TabIndex = 6;
+            this.Label1.Text = "Search Term:";
+            // 
+            // txtSearchTerm
+            // 
+            this.txtSearchTerm.Location = new System.Drawing.Point(10, 34);
+            this.txtSearchTerm.Name = "txtSearchTerm";
+            this.txtSearchTerm.Size = new System.Drawing.Size(321, 20);
+            this.txtSearchTerm.TabIndex = 7;
+            this.txtSearchTerm.TextChanged += new System.EventHandler(this.txtSearchTerm_TextChanged);
+            // 
+            // Label2
+            // 
+            this.Label2.AutoSize = true;
+            this.Label2.Location = new System.Drawing.Point(8, 71);
+            this.Label2.Name = "Label2";
+            this.Label2.Size = new System.Drawing.Size(97, 13);
+            this.Label2.TabIndex = 11;
+            this.Label2.Text = "Replacement Text:";
+            // 
+            // txtReplacementText
+            // 
+            this.txtReplacementText.Location = new System.Drawing.Point(10, 87);
+            this.txtReplacementText.Name = "txtReplacementText";
+            this.txtReplacementText.Size = new System.Drawing.Size(320, 20);
+            this.txtReplacementText.TabIndex = 12;
+            // 
+            // chkMatchCase
+            // 
+            this.chkMatchCase.AutoSize = true;
+            this.chkMatchCase.Location = new System.Drawing.Point(10, 113);
+            this.chkMatchCase.Name = "chkMatchCase";
+            this.chkMatchCase.Size = new System.Drawing.Size(83, 17);
+            this.chkMatchCase.TabIndex = 13;
+            this.chkMatchCase.Text = "Match Case";
+            this.chkMatchCase.UseVisualStyleBackColor = true;
+            // 
+            // btnFind
+            // 
+            this.btnFind.Location = new System.Drawing.Point(11, 149);
+            this.btnFind.Name = "btnFind";
+            this.btnFind.Size = new System.Drawing.Size(75, 21);
+            this.btnFind.TabIndex = 14;
+            this.btnFind.Text = "&Find";
+            this.btnFind.UseVisualStyleBackColor = true;
+            this.btnFind.Click += new System.EventHandler(this.btnFind_Click);
+            // 
+            // btnFindNext
+            // 
+            this.btnFindNext.Enabled = false;
+            this.btnFindNext.Location = new System.Drawing.Point(92, 149);
+            this.btnFindNext.Name = "btnFindNext";
+            this.btnFindNext.Size = new System.Drawing.Size(75, 21);
+            this.btnFindNext.TabIndex = 15;
+            this.btnFindNext.Text = "Find &Next";
+            this.btnFindNext.UseVisualStyleBackColor = true;
+            this.btnFindNext.Click += new System.EventHandler(this.btnFindNext_Click);
+            // 
+            // btnReplace
+            // 
+            this.btnReplace.Location = new System.Drawing.Point(173, 149);
+            this.btnReplace.Name = "btnReplace";
+            this.btnReplace.Size = new System.Drawing.Size(75, 21);
+            this.btnReplace.TabIndex = 16;
+            this.btnReplace.Text = "&Replace";
+            this.btnReplace.UseVisualStyleBackColor = true;
+            this.btnReplace.Click += new System.EventHandler(this.btnReplace_Click);
+            // 
+            // btnReplaceAll
+            // 
+            this.btnReplaceAll.Location = new System.Drawing.Point(254, 149);
+            this.btnReplaceAll.Name = "btnReplaceAll";
+            this.btnReplaceAll.Size = new System.Drawing.Size(75, 21);
+            this.btnReplaceAll.TabIndex = 17;
+            this.btnReplaceAll.Text = "Replace &All";
+            this.btnReplaceAll.UseVisualStyleBackColor = true;
+            this.btnReplaceAll.Click += new System.EventHandler(this.btnReplaceAll_Click);
+            // 
+            // frmReplace
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(343, 189);
+            this.Controls.Add(this.btnReplaceAll);
+            this.Controls.Add(this.btnReplace);
+            this.Controls.Add(this.btnFindNext);
+            this.Controls.Add(this.btnFind);
+            this.Controls.Add(this.chkMatchCase);
+            this.Controls.Add(this.txtReplacementText);
+            this.Controls.Add(this.Label2);
+            this.Controls.Add(this.txtSearchTerm);
+            this.Controls.Add(this.Label1);
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.Name = "frmReplace";
+            this.Text = "RTE - Replace Text";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        internal System.Windows.Forms.Label Label1;
+        internal System.Windows.Forms.TextBox txtSearchTerm;
+        internal System.Windows.Forms.Label Label2;
+        internal System.Windows.Forms.TextBox txtReplacementText;
+        internal System.Windows.Forms.CheckBox chkMatchCase;
+        internal System.Windows.Forms.Button btnFind;
+        internal System.Windows.Forms.Button btnFindNext;
+        internal System.Windows.Forms.Button btnReplace;
+        internal System.Windows.Forms.Button btnReplaceAll;
+    }
+}
\ No newline at end of file

Backup/RichTextEditor/frmReplace.cs

+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+
+
+namespace RichTextEditor
+{
+
+    public partial class frmReplace : Form
+    {
+        // member variable pointing to main form
+        frmMain mMain;
+        
+
+        // default constructor
+        public frmReplace()
+        {
+            InitializeComponent();
+        }
+
+
+        // overloaded constructor accepteing main form as
+        // an argument
+        public frmReplace(frmMain f)
+        {
+            InitializeComponent();
+            mMain = f;
+        }
+
+
+
+        private void btnFind_Click(object sender, System.EventArgs e)
+        {
+            try
+            {
+                int StartPosition;
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtSearchTerm.Text, SearchType);
+
+                if (StartPosition == 0)
+                {
+                    MessageBox.Show("String: " + txtSearchTerm.Text.ToString() + " not found", "No Matches", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                    return;
+                }
+
+                mMain.rtbDoc.Select(StartPosition, txtSearchTerm.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+                btnFindNext.Enabled = true;
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+
+        }
+
+
+
+        private void btnFindNext_Click(object sender, System.EventArgs e)
+        {
+            try
+            {
+                int StartPosition = mMain.rtbDoc.SelectionStart + 2;
+
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtSearchTerm.Text, StartPosition, SearchType);
+
+                if (StartPosition == 0 || StartPosition < 0)
+                {
+                    MessageBox.Show("String: " + txtSearchTerm.Text.ToString() + " not found", "No Matches", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                    return;
+                }
+
+                mMain.rtbDoc.Select(StartPosition, txtSearchTerm.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+        }
+
+
+
+
+        private void btnReplace_Click(object sender, System.EventArgs e)
+        {
+            try
+            {
+                if (mMain.rtbDoc.SelectedText.Length != 0)
+                {
+                    mMain.rtbDoc.SelectedText = txtReplacementText.Text;
+                }
+
+                int StartPosition;
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtSearchTerm.Text, SearchType);
+
+                if (StartPosition == 0 || StartPosition < 0)
+                {
+                    MessageBox.Show("String: " + txtSearchTerm.Text.ToString() + " not found", "No Matches", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                    return;
+                }
+
+                mMain.rtbDoc.Select(StartPosition, txtSearchTerm.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+
+        }
+
+
+
+        private void btnReplaceAll_Click(object sender, System.EventArgs e)
+        {
+
+            try
+            {
+                mMain.rtbDoc.Rtf = mMain.rtbDoc.Rtf.Replace(txtSearchTerm.Text.Trim(), txtReplacementText.Text.Trim());
+
+
+                int StartPosition;
+                StringComparison SearchType;
+
+                if (chkMatchCase.Checked == true)
+                {
+                    SearchType = StringComparison.Ordinal;
+                }
+                else
+                {
+                    SearchType = StringComparison.OrdinalIgnoreCase;
+                }
+
+                StartPosition = mMain.rtbDoc.Text.IndexOf(txtReplacementText.Text, SearchType);
+
+                mMain.rtbDoc.Select(StartPosition, txtReplacementText.Text.Length);
+                mMain.rtbDoc.ScrollToCaret();
+                mMain.Focus();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString(), "Error");
+            }
+
+        }
+
+        private void txtSearchTerm_TextChanged(object sender, EventArgs e)
+        {
+            btnFindNext.Enabled = false;
+        }
+
+        
+    }
+}
\ No newline at end of file

Backup/RichTextEditor/frmReplace.resx

+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Drawing" name="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+    <value>
+        AAABAAEAICD/AAAAAACoCAAAFgAAACgAAAAgAAAAQAAAAAEACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEAAAAAAAAAAQEBAQEBAQEBAQEBAQEBAQEB
+        AQEBAQEBAAAAAAAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAQAAAAAAAQEBAQEBAQEBAQEB
+        AQEBAQEBAQEAAAAAAAEBAQAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAAAAAAABAQEBAQAAAAAAAQEBAQEB
+        AQEBAQEBAQEBAQAAAAAAAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQEBAQEAAAAAAAEBAQEBAQEBAQAAAAAA
+        AQEBAQEBAQEBAQEBAAAAAAABAQEBAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQEB
+        AQAAAAAAAQEBAQEBAQEAAAAAAAEBAQEBAQEBAQEBAQEBAQAAAAAAAQEBAQEBAAAAAAABAQEBAQEBAQEB
+        AQEBAQEBAQAAAAAAAQEBAQAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAQEAAAAAAAEBAQEBAQEB
+        AQEBAQEBAQEBAQEBAQAAAAAAAAAAAAABAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAAAAAQEBAQEB
+        AQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAAAAAAAAAQEB
+        AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEAAAAAAAAA
+        AAAAAQEBAQEBAQEBAQEBAQEBAQEBAQEBAAAAAAABAQAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAA
+        AQEBAQAAAAAAAQEBAQEBAQEBAQEBAQEBAQEAAAAAAAEBAQEBAQAAAAAAAQEBAQEBAQEBAQEBAQEBAAAA
+        AAABAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQAAAAAAAQEBAQEBAQEBAQEA
+        AAAAAAEBAQEBAQEBAQEBAQAAAAAAAQEBAQEBAQEBAAAAAAABAQEBAQEBAQEBAQEBAQAAAAAAAQEBAQEB
+        AQAAAAAAAQEBAQEBAQEBAQEBAQEBAQAAAAAAAQEBAQEAAAAAAAEBAQEBAQEBAQEBAQEBAQEBAQAAAAAA
+        AQEBAAAAAAABAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAQAAAAAAAQEBAQEBAQEBAQEBAQEBAQEBAQEB
+        AQAAAAAAAAAAAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQAAAAAAAAABAQEBAQEBAQEBAQEBAQEBAQEB
+        AQEBAQEBAQAAAB////gP///wB///4IP//8HB//+D4P//B/B//g/4P/wf/B/4P/4P8H//B+D//4PB///B
+        g///4Af///AP///4H///+B////AP///gB///wYP//4PB//8H4P/+D/B//B/4P/g//B/wf/4P4P//B8H/
+        /4OD///BB///4A////Af///4
+</value>
+  </data>
+</root>
\ No newline at end of file

Backup/tp.txt

+public void AddLineNumbers()  
+{  
+    // create & set Point pt to (0,0)    
+    Point pt = new Point(0, 0);  
+    // get First Index & First Line from richTextBox1    
+    int First_Index = richTextBox1.GetCharIndexFromPosition(pt);  
+    int First_Line = richTextBox1.GetLineFromCharIndex(First_Index);  
+    // set X & Y coordinates of Point pt to ClientRectangle Width & Height respectively    
+    pt.X = ClientRectangle.Width;  
+    pt.Y = ClientRectangle.Height;  
+    // get Last Index & Last Line from richTextBox1    
+    int Last_Index = richTextBox1.GetCharIndexFromPosition(pt);  
+    int Last_Line = richTextBox1.GetLineFromCharIndex(Last_Index);  
+    // set Center alignment to LineNumberTextBox    
+    LineNumberTextBox.SelectionAlignment = HorizontalAlignment.Center;  
+    // set LineNumberTextBox text to null & width to getWidth() function value    
+    LineNumberTextBox.Text = "";  
+    LineNumberTextBox.Width = getWidth();  
+    // now add each line number to LineNumberTextBox upto last line    
+    for (int i = First_Line; i <= Last_Line + 2; i++)  
+    {  
+        LineNumberTextBox.Text += i + 1 + "\n";  
+    }  
+}  
\ No newline at end of file

RichTextEditor.sln

+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.852
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RichTextEditor", "RichTextEditor\RichTextEditor.csproj", "{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{782BCFDB-2DED-4E8E-A259-744D71D4B9FF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C9A92F1A-B6D5-41E6-A0A2-74B29366034A}
+	EndGlobalSection
+EndGlobal

RichTextEditor/Program.cs

+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+
+namespace RichTextEditor
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new frmMain());
+        }
+    }
+}

RichTextEditor/Properties/AssemblyInfo.cs

+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("RichTextEditor")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("MCN")]
+[assembly: AssemblyProduct("RichTextEditor")]
+[assembly: AssemblyCopyright("Copyright © MCN 2006")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("1045fb1f-6ef6-4435-a744-9b984463349c")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

RichTextEditor/Properties/Resources.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace RichTextEditor.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("RichTextEditor.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+    }
+}

RichTextEditor/Properties/Resources.resx

+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file

RichTextEditor/Properties/Settings.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace RichTextEditor.Properties {
+    
+    
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.9.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+        
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+        
+        public static Settings Default {
+            get {
+                return defaultInstance;
+            }
+        }
+    }
+}

RichTextEditor/Properties/Settings.settings

+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

RichTextEditor/Properties/app.manifest

+<?xml version="1.0" encoding="utf-8"?>
+<asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <applicationRequestMinimum>
+        <PermissionSet class="System.Security.PermissionSet" version="1" Unrestricted="true" ID="Custom" SameSite="site" />
+        <defaultAssemblyRequest permissionSetReference="Custom" />
+      </applicationRequestMinimum>
+    </security>
+  </trustInfo>
+</asmv1:assembly>
\ No newline at end of file