VB.Net by API/System.Windows.Forms/RichTextBox

RichTextBox.CanRedo

<source lang="vbnet"> Imports System Imports System.Data Imports System.Windows.Forms Imports System.Drawing Imports System.Diagnostics Imports System.Drawing.Printing Imports System.ruponentModel

Public Class MainClass

   Shared Sub Main()
       
      Dim form1 As Form = New Form1
      Application.Run(form1) 
   End Sub

End Class

Public Class Form1

   Private Sub rchNotes_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rchNotes.TextChanged
       btnUndo.Enabled = rchNotes.CanUndo
       btnRedo.Enabled = rchNotes.CanRedo
       If btnUndo.Enabled Then
           btnUndo.Text = "Undo " & rchNotes.UndoActionName
       Else
           btnUndo.Text = "Undo"
       End If
       If btnRedo.Enabled Then
           If btnRedo.Enabled Then btnRedo.Text = "Redo " & rchNotes.RedoActionName
       Else
           If btnRedo.Enabled Then btnRedo.Text = "Redo"
       End If
   End Sub
   Private Sub btnUndo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUndo.Click
       rchNotes.Undo()
   End Sub
   Private Sub btnRedo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRedo.Click
       rchNotes.Redo()
   End Sub
   Private Sub btnRed_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRed.Click
       rchNotes.SelectionColor = Color.Red
   End Sub
   Private Sub btnBlue_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBlue.Click
       rchNotes.SelectionColor = Color.Blue
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.MenuStrip1 = New System.Windows.Forms.MenuStrip
       Me.btnUndo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRedo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRed = New System.Windows.Forms.ToolStripMenuItem
       Me.btnBlue = New System.Windows.Forms.ToolStripMenuItem
       Me.rchNotes = New System.Windows.Forms.RichTextBox
       Me.MenuStrip1.SuspendLayout()
       Me.SuspendLayout()
       "
       "MenuStrip1
       "
       Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.btnUndo, Me.btnRedo, Me.btnRed, Me.btnBlue})
       Me.MenuStrip1.Location = New System.Drawing.Point(0, 0)
       Me.MenuStrip1.Name = "MenuStrip1"
       Me.MenuStrip1.Size = New System.Drawing.Size(374, 24)
       Me.MenuStrip1.TabIndex = 5
       Me.MenuStrip1.Text = "MenuStrip1"
       "
       "btnUndo
       "
       Me.btnUndo.Enabled = False
       Me.btnUndo.Name = "btnUndo"
       Me.btnUndo.Text = "Undo"
       "
       "btnRedo
       "
       Me.btnRedo.Enabled = False
       Me.btnRedo.Name = "btnRedo"
       Me.btnRedo.Text = "Redo"
       "
       "btnRed
       "
       Me.btnRed.Name = "btnRed"
       Me.btnRed.Text = "Red"
       "
       "btnBlue
       "
       Me.btnBlue.Name = "btnBlue"
       Me.btnBlue.Text = "Blue"
       "
       "rchNotes
       "
       Me.rchNotes.Dock = System.Windows.Forms.DockStyle.Fill
       Me.rchNotes.Location = New System.Drawing.Point(0, 24)
       Me.rchNotes.Name = "rchNotes"
       Me.rchNotes.Size = New System.Drawing.Size(374, 249)
       Me.rchNotes.TabIndex = 6
       Me.rchNotes.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(374, 273)
       Me.Controls.Add(Me.rchNotes)
       Me.Controls.Add(Me.MenuStrip1)
       Me.Name = "Form1"
       Me.Text = "UseRichTextBox"
       Me.MenuStrip1.ResumeLayout(False)
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
   Friend WithEvents btnUndo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRedo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRed As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnBlue As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents rchNotes As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.CanUndo

<source lang="vbnet"> Imports System Imports System.Data Imports System.Windows.Forms Imports System.Drawing Imports System.Diagnostics Imports System.Drawing.Printing Imports System.ruponentModel

Public Class MainClass

   Shared Sub Main()
       
      Dim form1 As Form = New Form1
      Application.Run(form1) 
   End Sub

End Class

Public Class Form1

   Private Sub rchNotes_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rchNotes.TextChanged
       btnUndo.Enabled = rchNotes.CanUndo
       btnRedo.Enabled = rchNotes.CanRedo
       If btnUndo.Enabled Then
           btnUndo.Text = "Undo " & rchNotes.UndoActionName
       Else
           btnUndo.Text = "Undo"
       End If
       If btnRedo.Enabled Then
           If btnRedo.Enabled Then btnRedo.Text = "Redo " & rchNotes.RedoActionName
       Else
           If btnRedo.Enabled Then btnRedo.Text = "Redo"
       End If
   End Sub
   Private Sub btnUndo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUndo.Click
       rchNotes.Undo()
   End Sub
   Private Sub btnRedo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRedo.Click
       rchNotes.Redo()
   End Sub
   Private Sub btnRed_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRed.Click
       rchNotes.SelectionColor = Color.Red
   End Sub
   Private Sub btnBlue_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBlue.Click
       rchNotes.SelectionColor = Color.Blue
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.MenuStrip1 = New System.Windows.Forms.MenuStrip
       Me.btnUndo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRedo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRed = New System.Windows.Forms.ToolStripMenuItem
       Me.btnBlue = New System.Windows.Forms.ToolStripMenuItem
       Me.rchNotes = New System.Windows.Forms.RichTextBox
       Me.MenuStrip1.SuspendLayout()
       Me.SuspendLayout()
       "
       "MenuStrip1
       "
       Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.btnUndo, Me.btnRedo, Me.btnRed, Me.btnBlue})
       Me.MenuStrip1.Location = New System.Drawing.Point(0, 0)
       Me.MenuStrip1.Name = "MenuStrip1"
       Me.MenuStrip1.Size = New System.Drawing.Size(374, 24)
       Me.MenuStrip1.TabIndex = 5
       Me.MenuStrip1.Text = "MenuStrip1"
       "
       "btnUndo
       "
       Me.btnUndo.Enabled = False
       Me.btnUndo.Name = "btnUndo"
       Me.btnUndo.Text = "Undo"
       "
       "btnRedo
       "
       Me.btnRedo.Enabled = False
       Me.btnRedo.Name = "btnRedo"
       Me.btnRedo.Text = "Redo"
       "
       "btnRed
       "
       Me.btnRed.Name = "btnRed"
       Me.btnRed.Text = "Red"
       "
       "btnBlue
       "
       Me.btnBlue.Name = "btnBlue"
       Me.btnBlue.Text = "Blue"
       "
       "rchNotes
       "
       Me.rchNotes.Dock = System.Windows.Forms.DockStyle.Fill
       Me.rchNotes.Location = New System.Drawing.Point(0, 24)
       Me.rchNotes.Name = "rchNotes"
       Me.rchNotes.Size = New System.Drawing.Size(374, 249)
       Me.rchNotes.TabIndex = 6
       Me.rchNotes.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(374, 273)
       Me.Controls.Add(Me.rchNotes)
       Me.Controls.Add(Me.MenuStrip1)
       Me.Name = "Form1"
       Me.Text = "UseRichTextBox"
       Me.MenuStrip1.ResumeLayout(False)
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
   Friend WithEvents btnUndo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRedo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRed As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnBlue As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents rchNotes As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.LoadFile

<source lang="vbnet"> Imports System Imports System.Collections Imports System.Data Imports System.IO Imports System.Xml.Serialization Imports System.Windows.Forms Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Drawing.Printing

Public Class MainClass

   Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1) 
   End Sub

End Class

Public Class Form1

   Inherits System.Windows.Forms.Form

1. Region " Windows Form Designer generated code "

   Public Sub New()
       MyBase.New()
       "This call is required by the Windows Form Designer.
       InitializeComponent()
       "Add any initialization after the InitializeComponent() call
   End Sub
   "Form overrides dispose to clean up the component list.
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing Then
           If Not (components Is Nothing) Then
               components.Dispose()
           End If
       End If
       MyBase.Dispose(disposing)
   End Sub
   Friend WithEvents RichTextBox1 As System.Windows.Forms.RichTextBox
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.Container
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.RichTextBox1 = New System.Windows.Forms.RichTextBox()
       Me.SuspendLayout()
       "
       "RichTextBox1
       "
       Me.RichTextBox1.Dock = System.Windows.Forms.DockStyle.Fill
       Me.RichTextBox1.Name = "RichTextBox1"
       Me.RichTextBox1.Size = New System.Drawing.Size(292, 269)
       Me.RichTextBox1.TabIndex = 0
       Me.RichTextBox1.Text = ""
       "
       "Form1
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
       Me.ClientSize = New System.Drawing.Size(292, 269)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.RichTextBox1})
       Me.Name = "Form1"
       Me.Text = "Example"
       Me.ResumeLayout(False)
   End Sub

1. End Region

   Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    
    RichTextBox1.LoadFile("test.vb", RichTextBoxStreamType.PlainText)
  
   End Sub

End Class

 </source>

RichTextBox.Select

<source lang="vbnet"> Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math Public Class MainClass

  Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1)
  End Sub 

End Class Public Class Form1

   Private Sub frmDragRichText_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       " Give the RichTextBox some text.
       Dim txt As String = "www.vbex.ru."
       rchSource.Text = txt
       rchSource.Select(txt.IndexOf("www"), Len("www"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Italic)
       rchSource.Select(txt.IndexOf("."), Len("."))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Brown
       rchSource.Select(txt.IndexOf("vbex"), Len("vbex"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Red
       rchSource.Select(txt.IndexOf("com"), Len("com"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Underline)
       rchSource.Select(0, 0)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.rchSource = New System.Windows.Forms.RichTextBox
       Me.SuspendLayout()
       "
       "rchSource
       "
       Me.rchSource.AllowDrop = True
       Me.rchSource.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchSource.Location = New System.Drawing.Point(0, 0)
       Me.rchSource.Name = "rchSource"
       Me.rchSource.Size = New System.Drawing.Size(296, 200)
       Me.rchSource.TabIndex = 10
       Me.rchSource.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(296, 200)
       Me.Controls.Add(Me.rchSource)
       Me.Name = "Form1"
       Me.Text = "CopyPasteRichText"
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents rchSource As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.Select(Int pos)

<source lang="vbnet">

Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math Public Class MainClass

  Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1)
  End Sub 

End Class Public Class Form1

   Private Sub frmDragRichText_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       Dim txt As String = "www.vbex.ru."
       rchSource.Text = txt
       rchSource.Select(txt.IndexOf("www"), Len("www"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Italic)
       rchSource.Select(txt.IndexOf("."), Len("."))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Brown
       rchSource.Select(txt.IndexOf("vbex"), Len("vbex"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Red
       rchSource.Select(txt.IndexOf("com"), Len("com"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Underline)
       rchSource.Select(0, 0)

       " Make a DataObject.
       Dim data_object As New DataObject
       " Add the data in various formats.
       data_object.SetData(DataFormats.Text, rchSource.Text)

       " Copy data to the clipboard.
       Clipboard.SetDataObject(data_object)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.lblRtf = New System.Windows.Forms.Label
       Me.lblHtml = New System.Windows.Forms.Label
       Me.lblTarget = New System.Windows.Forms.Label
       Me.rchTarget = New System.Windows.Forms.RichTextBox
       Me.rchSource = New System.Windows.Forms.RichTextBox
       Me.SuspendLayout()
       "
       "lblRtf
       "
       Me.lblRtf.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblRtf.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblRtf.Location = New System.Drawing.Point(0, 104)
       Me.lblRtf.Margin = New System.Windows.Forms.Padding(3, 3, 3, 1)
       Me.lblRtf.Name = "lblRtf"
       Me.lblRtf.Size = New System.Drawing.Size(296, 110)
       Me.lblRtf.TabIndex = 14
       "
       "lblHtml
       "
       Me.lblHtml.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblHtml.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblHtml.Location = New System.Drawing.Point(0, 248)
       Me.lblHtml.Margin = New System.Windows.Forms.Padding(3, 2, 3, 3)
       Me.lblHtml.Name = "lblHtml"
       Me.lblHtml.Size = New System.Drawing.Size(296, 80)
       Me.lblHtml.TabIndex = 13
       "
       "lblTarget
       "
       Me.lblTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblTarget.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblTarget.Location = New System.Drawing.Point(0, 216)
       Me.lblTarget.Margin = New System.Windows.Forms.Padding(3, 1, 3, 2)
       Me.lblTarget.Name = "lblTarget"
       Me.lblTarget.Size = New System.Drawing.Size(296, 28)
       Me.lblTarget.TabIndex = 12
       "
       "rchTarget
       "
       Me.rchTarget.AllowDrop = True
       Me.rchTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchTarget.Location = New System.Drawing.Point(0, 72)
       Me.rchTarget.Name = "rchTarget"
       Me.rchTarget.Size = New System.Drawing.Size(296, 28)
       Me.rchTarget.TabIndex = 11
       Me.rchTarget.Text = ""
       "
       "rchSource
       "
       Me.rchSource.AllowDrop = True
       Me.rchSource.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchSource.Location = New System.Drawing.Point(0, 0)
       Me.rchSource.Name = "rchSource"
       Me.rchSource.Size = New System.Drawing.Size(296, 28)
       Me.rchSource.TabIndex = 10
       Me.rchSource.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(296, 329)
       Me.Controls.Add(Me.lblRtf)
       Me.Controls.Add(Me.lblHtml)
       Me.Controls.Add(Me.lblTarget)
       Me.Controls.Add(Me.rchTarget)
       Me.Controls.Add(Me.rchSource)
       Me.Name = "Form1"
       Me.Text = "CopyPasteRichText"
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents lblRtf As System.Windows.Forms.Label
   Friend WithEvents lblHtml As System.Windows.Forms.Label
   Friend WithEvents lblTarget As System.Windows.Forms.Label
   Friend WithEvents rchTarget As System.Windows.Forms.RichTextBox
   Friend WithEvents rchSource As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.Select(Int start,int pos)

<source lang="vbnet">

Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math Public Class MainClass

  Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1)
  End Sub 

End Class Public Class Form1

   Private Sub frmDragRichText_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       Dim txt As String = "www.vbex.ru."
       rchSource.Text = txt
       rchSource.Select(txt.IndexOf("www"), Len("www"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Italic)
       rchSource.Select(txt.IndexOf("."), Len("."))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Brown
       rchSource.Select(txt.IndexOf("vbex"), Len("vbex"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Red
       rchSource.Select(txt.IndexOf("com"), Len("com"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Underline)
       rchSource.Select(0, 0)

       " Make a DataObject.
       Dim data_object As New DataObject
       " Add the data in various formats.
       data_object.SetData(DataFormats.Text, rchSource.Text)

       " Copy data to the clipboard.
       Clipboard.SetDataObject(data_object)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.lblRtf = New System.Windows.Forms.Label
       Me.lblHtml = New System.Windows.Forms.Label
       Me.lblTarget = New System.Windows.Forms.Label
       Me.rchTarget = New System.Windows.Forms.RichTextBox
       Me.rchSource = New System.Windows.Forms.RichTextBox
       Me.SuspendLayout()
       "
       "lblRtf
       "
       Me.lblRtf.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblRtf.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblRtf.Location = New System.Drawing.Point(0, 104)
       Me.lblRtf.Margin = New System.Windows.Forms.Padding(3, 3, 3, 1)
       Me.lblRtf.Name = "lblRtf"
       Me.lblRtf.Size = New System.Drawing.Size(296, 110)
       Me.lblRtf.TabIndex = 14
       "
       "lblHtml
       "
       Me.lblHtml.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblHtml.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblHtml.Location = New System.Drawing.Point(0, 248)
       Me.lblHtml.Margin = New System.Windows.Forms.Padding(3, 2, 3, 3)
       Me.lblHtml.Name = "lblHtml"
       Me.lblHtml.Size = New System.Drawing.Size(296, 80)
       Me.lblHtml.TabIndex = 13
       "
       "lblTarget
       "
       Me.lblTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblTarget.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblTarget.Location = New System.Drawing.Point(0, 216)
       Me.lblTarget.Margin = New System.Windows.Forms.Padding(3, 1, 3, 2)
       Me.lblTarget.Name = "lblTarget"
       Me.lblTarget.Size = New System.Drawing.Size(296, 28)
       Me.lblTarget.TabIndex = 12
       "
       "rchTarget
       "
       Me.rchTarget.AllowDrop = True
       Me.rchTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchTarget.Location = New System.Drawing.Point(0, 72)
       Me.rchTarget.Name = "rchTarget"
       Me.rchTarget.Size = New System.Drawing.Size(296, 28)
       Me.rchTarget.TabIndex = 11
       Me.rchTarget.Text = ""
       "
       "rchSource
       "
       Me.rchSource.AllowDrop = True
       Me.rchSource.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchSource.Location = New System.Drawing.Point(0, 0)
       Me.rchSource.Name = "rchSource"
       Me.rchSource.Size = New System.Drawing.Size(296, 28)
       Me.rchSource.TabIndex = 10
       Me.rchSource.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(296, 329)
       Me.Controls.Add(Me.lblRtf)
       Me.Controls.Add(Me.lblHtml)
       Me.Controls.Add(Me.lblTarget)
       Me.Controls.Add(Me.rchTarget)
       Me.Controls.Add(Me.rchSource)
       Me.Name = "Form1"
       Me.Text = "CopyPasteRichText"
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents lblRtf As System.Windows.Forms.Label
   Friend WithEvents lblHtml As System.Windows.Forms.Label
   Friend WithEvents lblTarget As System.Windows.Forms.Label
   Friend WithEvents rchTarget As System.Windows.Forms.RichTextBox
   Friend WithEvents rchSource As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.SelectionColor

<source lang="vbnet">

Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math Public Class MainClass

  Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1)
  End Sub 

End Class Public Class Form1

   Private Sub frmDragRichText_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       Dim txt As String = "www.vbex.ru."
       rchSource.Text = txt
       rchSource.Select(txt.IndexOf("www"), Len("www"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Italic)
       rchSource.Select(txt.IndexOf("."), Len("."))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Brown
       rchSource.Select(txt.IndexOf("vbex"), Len("vbex"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Red
       rchSource.Select(txt.IndexOf("com"), Len("com"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Underline)
       rchSource.Select(0, 0)

       " Make a DataObject.
       Dim data_object As New DataObject
       " Add the data in various formats.
       data_object.SetData(DataFormats.Text, rchSource.Text)

       " Copy data to the clipboard.
       Clipboard.SetDataObject(data_object)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.lblRtf = New System.Windows.Forms.Label
       Me.lblHtml = New System.Windows.Forms.Label
       Me.lblTarget = New System.Windows.Forms.Label
       Me.rchTarget = New System.Windows.Forms.RichTextBox
       Me.rchSource = New System.Windows.Forms.RichTextBox
       Me.SuspendLayout()
       "
       "lblRtf
       "
       Me.lblRtf.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblRtf.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblRtf.Location = New System.Drawing.Point(0, 104)
       Me.lblRtf.Margin = New System.Windows.Forms.Padding(3, 3, 3, 1)
       Me.lblRtf.Name = "lblRtf"
       Me.lblRtf.Size = New System.Drawing.Size(296, 110)
       Me.lblRtf.TabIndex = 14
       "
       "lblHtml
       "
       Me.lblHtml.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblHtml.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblHtml.Location = New System.Drawing.Point(0, 248)
       Me.lblHtml.Margin = New System.Windows.Forms.Padding(3, 2, 3, 3)
       Me.lblHtml.Name = "lblHtml"
       Me.lblHtml.Size = New System.Drawing.Size(296, 80)
       Me.lblHtml.TabIndex = 13
       "
       "lblTarget
       "
       Me.lblTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.lblTarget.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.lblTarget.Location = New System.Drawing.Point(0, 216)
       Me.lblTarget.Margin = New System.Windows.Forms.Padding(3, 1, 3, 2)
       Me.lblTarget.Name = "lblTarget"
       Me.lblTarget.Size = New System.Drawing.Size(296, 28)
       Me.lblTarget.TabIndex = 12
       "
       "rchTarget
       "
       Me.rchTarget.AllowDrop = True
       Me.rchTarget.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchTarget.Location = New System.Drawing.Point(0, 72)
       Me.rchTarget.Name = "rchTarget"
       Me.rchTarget.Size = New System.Drawing.Size(296, 28)
       Me.rchTarget.TabIndex = 11
       Me.rchTarget.Text = ""
       "
       "rchSource
       "
       Me.rchSource.AllowDrop = True
       Me.rchSource.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchSource.Location = New System.Drawing.Point(0, 0)
       Me.rchSource.Name = "rchSource"
       Me.rchSource.Size = New System.Drawing.Size(296, 28)
       Me.rchSource.TabIndex = 10
       Me.rchSource.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(296, 329)
       Me.Controls.Add(Me.lblRtf)
       Me.Controls.Add(Me.lblHtml)
       Me.Controls.Add(Me.lblTarget)
       Me.Controls.Add(Me.rchTarget)
       Me.Controls.Add(Me.rchSource)
       Me.Name = "Form1"
       Me.Text = "CopyPasteRichText"
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents lblRtf As System.Windows.Forms.Label
   Friend WithEvents lblHtml As System.Windows.Forms.Label
   Friend WithEvents lblTarget As System.Windows.Forms.Label
   Friend WithEvents rchTarget As System.Windows.Forms.RichTextBox
   Friend WithEvents rchSource As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.SelectionFont

<source lang="vbnet"> Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math Public Class MainClass

  Shared Sub Main()
      Dim form1 As Form = New Form1()
      Application.Run(form1)
  End Sub 

End Class Public Class Form1

   Private Sub frmDragRichText_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       " Give the RichTextBox some text.
       Dim txt As String = "www.vbex.ru."
       rchSource.Text = txt
       rchSource.Select(txt.IndexOf("www"), Len("www"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Italic)
       rchSource.Select(txt.IndexOf("."), Len("."))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Brown
       rchSource.Select(txt.IndexOf("vbex"), Len("vbex"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Bold)
       rchSource.SelectionColor = Color.Red
       rchSource.Select(txt.IndexOf("com"), Len("com"))
       rchSource.SelectionFont = New Font(rchSource.SelectionFont, FontStyle.Underline)
       rchSource.Select(0, 0)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.rchSource = New System.Windows.Forms.RichTextBox
       Me.SuspendLayout()
       "
       "rchSource
       "
       Me.rchSource.AllowDrop = True
       Me.rchSource.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                   Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
       Me.rchSource.Location = New System.Drawing.Point(0, 0)
       Me.rchSource.Name = "rchSource"
       Me.rchSource.Size = New System.Drawing.Size(296, 200)
       Me.rchSource.TabIndex = 10
       Me.rchSource.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(296, 200)
       Me.Controls.Add(Me.rchSource)
       Me.Name = "Form1"
       Me.Text = "CopyPasteRichText"
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents rchSource As System.Windows.Forms.RichTextBox

End Class

 </source>

RichTextBox.UndoActionName

<source lang="vbnet">

Imports System Imports System.Data Imports System.Windows.Forms Imports System.Drawing Imports System.Diagnostics Imports System.Drawing.Printing Imports System.ruponentModel

Public Class MainClass

   Shared Sub Main()
       
      Dim form1 As Form = New Form1
      Application.Run(form1) 
   End Sub

End Class

Public Class Form1

   Private Sub rchNotes_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rchNotes.TextChanged
       btnUndo.Enabled = rchNotes.CanUndo
       btnRedo.Enabled = rchNotes.CanRedo
       If btnUndo.Enabled Then
           btnUndo.Text = "Undo " & rchNotes.UndoActionName
       Else
           btnUndo.Text = "Undo"
       End If
       If btnRedo.Enabled Then
           If btnRedo.Enabled Then btnRedo.Text = "Redo " & rchNotes.RedoActionName
       Else
           If btnRedo.Enabled Then btnRedo.Text = "Redo"
       End If
   End Sub
   Private Sub btnUndo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUndo.Click
       rchNotes.Undo()
   End Sub
   Private Sub btnRedo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRedo.Click
       rchNotes.Redo()
   End Sub
   Private Sub btnRed_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRed.Click
       rchNotes.SelectionColor = Color.Red
   End Sub
   Private Sub btnBlue_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBlue.Click
       rchNotes.SelectionColor = Color.Blue
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.MenuStrip1 = New System.Windows.Forms.MenuStrip
       Me.btnUndo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRedo = New System.Windows.Forms.ToolStripMenuItem
       Me.btnRed = New System.Windows.Forms.ToolStripMenuItem
       Me.btnBlue = New System.Windows.Forms.ToolStripMenuItem
       Me.rchNotes = New System.Windows.Forms.RichTextBox
       Me.MenuStrip1.SuspendLayout()
       Me.SuspendLayout()
       "
       "MenuStrip1
       "
       Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.btnUndo, Me.btnRedo, Me.btnRed, Me.btnBlue})
       Me.MenuStrip1.Location = New System.Drawing.Point(0, 0)
       Me.MenuStrip1.Name = "MenuStrip1"
       Me.MenuStrip1.Size = New System.Drawing.Size(374, 24)
       Me.MenuStrip1.TabIndex = 5
       Me.MenuStrip1.Text = "MenuStrip1"
       "
       "btnUndo
       "
       Me.btnUndo.Enabled = False
       Me.btnUndo.Name = "btnUndo"
       Me.btnUndo.Text = "Undo"
       "
       "btnRedo
       "
       Me.btnRedo.Enabled = False
       Me.btnRedo.Name = "btnRedo"
       Me.btnRedo.Text = "Redo"
       "
       "btnRed
       "
       Me.btnRed.Name = "btnRed"
       Me.btnRed.Text = "Red"
       "
       "btnBlue
       "
       Me.btnBlue.Name = "btnBlue"
       Me.btnBlue.Text = "Blue"
       "
       "rchNotes
       "
       Me.rchNotes.Dock = System.Windows.Forms.DockStyle.Fill
       Me.rchNotes.Location = New System.Drawing.Point(0, 24)
       Me.rchNotes.Name = "rchNotes"
       Me.rchNotes.Size = New System.Drawing.Size(374, 249)
       Me.rchNotes.TabIndex = 6
       Me.rchNotes.Text = ""
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(374, 273)
       Me.Controls.Add(Me.rchNotes)
       Me.Controls.Add(Me.MenuStrip1)
       Me.Name = "Form1"
       Me.Text = "UseRichTextBox"
       Me.MenuStrip1.ResumeLayout(False)
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
   Friend WithEvents btnUndo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRedo As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnRed As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents btnBlue As System.Windows.Forms.ToolStripMenuItem
   Friend WithEvents rchNotes As System.Windows.Forms.RichTextBox

End Class

 </source>