VB.Net/GUI/TabControl

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Custom Tab control

Imports System
Imports System.Data
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Data.SqlClient
public class MainClass
   Shared Sub Main()
       Dim form1 As Form = New Form1
       Application.Run(form1)
   End Sub
End Class

Public Class Form1
    Private Sub tabProject_DrawItem(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles tabProject.DrawItem
        Dim rect As Rectangle = e.Bounds
        If (e.State And DrawItemState.Selected) = DrawItemState.Selected Then
            rect.X += 4
            rect.Y += 4
            rect.Width -= 8
            rect.Height -= 8
        Else
            rect.X += 2
            rect.Y += 2
            rect.Width -= 4
            rect.Height -= 4
        End If
        Select Case e.Index
            Case 0
                e.Graphics.FillEllipse(Brushes.Green, rect)
            Case 1
                e.Graphics.FillEllipse(Brushes.Yellow, rect)
            Case 2
                e.Graphics.FillEllipse(Brushes.Red, rect)
        End Select
        If (e.State And DrawItemState.Selected) = DrawItemState.Selected Then
            e.Graphics.DrawEllipse( _
                New Pen(Color.Black, 3), _
                rect)
        Else
            e.Graphics.DrawEllipse(Pens.Black, rect)
        End If
    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.tabProject = New System.Windows.Forms.TabControl
        Me.TabPage1 = New System.Windows.Forms.TabPage
        Me.TabPage2 = New System.Windows.Forms.TabPage
        Me.TabPage3 = New System.Windows.Forms.TabPage
        Me.tabProject.SuspendLayout()
        Me.SuspendLayout()
        "
        "tabProject
        "
        Me.tabProject.Controls.Add(Me.TabPage1)
        Me.tabProject.Controls.Add(Me.TabPage2)
        Me.tabProject.Controls.Add(Me.TabPage3)
        Me.tabProject.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed
        Me.tabProject.Location = New System.Drawing.Point(8, 8)
        Me.tabProject.Name = "tabProject"
        Me.tabProject.SelectedIndex = 0
        Me.tabProject.Size = New System.Drawing.Size(272, 200)
        Me.tabProject.TabIndex = 1
        "
        "TabPage1
        "
        Me.TabPage1.Location = New System.Drawing.Point(4, 22)
        Me.TabPage1.Name = "TabPage1"
        Me.TabPage1.Padding = New System.Windows.Forms.Padding(3)
        Me.TabPage1.Size = New System.Drawing.Size(264, 174)
        Me.TabPage1.TabIndex = 0
        Me.TabPage1.Text = "TabPage1"
        "
        "TabPage2
        "
        Me.TabPage2.Location = New System.Drawing.Point(4, 22)
        Me.TabPage2.Name = "TabPage2"
        Me.TabPage2.Padding = New System.Windows.Forms.Padding(3)
        Me.TabPage2.Size = New System.Drawing.Size(264, 174)
        Me.TabPage2.TabIndex = 1
        Me.TabPage2.Text = "TabPage2"
        "
        "TabPage3
        "
        Me.TabPage3.Location = New System.Drawing.Point(4, 22)
        Me.TabPage3.Name = "TabPage3"
        Me.TabPage3.Size = New System.Drawing.Size(264, 174)
        Me.TabPage3.TabIndex = 2
        Me.TabPage3.Text = "TabPage3"
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(289, 217)
        Me.Controls.Add(Me.tabProject)
        Me.Name = "Form1"
        Me.Text = "UseTabControlOwnerDrawn"
        Me.tabProject.ResumeLayout(False)
        Me.ResumeLayout(False)
    End Sub
    Friend WithEvents tabProject As System.Windows.Forms.TabControl
    Friend WithEvents TabPage1 As System.Windows.Forms.TabPage
    Friend WithEvents TabPage2 As System.Windows.Forms.TabPage
    Friend WithEvents TabPage3 As System.Windows.Forms.TabPage
End Class


Use Tab Control

Imports System.Windows.Forms
Module Module1
    Sub Main()
        Application.Run(New Form1)
    End Sub
End Module
Public Class Form1
    Inherits System.Windows.Forms.Form
#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
    "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.
    Friend WithEvents TabControl1 As System.Windows.Forms.TabControl
    Friend WithEvents TabPage1 As System.Windows.Forms.TabPage
    Friend WithEvents TabPage2 As System.Windows.Forms.TabPage
    Friend WithEvents TabPage3 As System.Windows.Forms.TabPage
    Friend WithEvents TabPage4 As System.Windows.Forms.TabPage
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox4 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.TabControl1 = New System.Windows.Forms.TabControl()
        Me.TabPage1 = New System.Windows.Forms.TabPage()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.TabPage2 = New System.Windows.Forms.TabPage()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.TabPage3 = New System.Windows.Forms.TabPage()
        Me.TextBox3 = New System.Windows.Forms.TextBox()
        Me.TabPage4 = New System.Windows.Forms.TabPage()
        Me.TextBox4 = New System.Windows.Forms.TextBox()
        Me.TabControl1.SuspendLayout()
        Me.TabPage1.SuspendLayout()
        Me.TabPage2.SuspendLayout()
        Me.TabPage3.SuspendLayout()
        Me.TabPage4.SuspendLayout()
        Me.SuspendLayout()
        "
        "TabControl1
        "
        Me.TabControl1.Controls.AddRange(New System.Windows.Forms.Control() {Me.TabPage1, Me.TabPage2, Me.TabPage3, Me.TabPage4})
        Me.TabControl1.Location = New System.Drawing.Point(48, 48)
        Me.TabControl1.Name = "TabControl1"
        Me.TabControl1.SelectedIndex = 0
        Me.TabControl1.Size = New System.Drawing.Size(288, 200)
        Me.TabControl1.TabIndex = 0
        "
        "TabPage1
        "
        Me.TabPage1.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox1})
        Me.TabPage1.Location = New System.Drawing.Point(4, 22)
        Me.TabPage1.Name = "TabPage1"
        Me.TabPage1.Size = New System.Drawing.Size(280, 174)
        Me.TabPage1.TabIndex = 0
        Me.TabPage1.Text = "Visual Basic .Net"
        "
        "TextBox1
        "
        Me.TextBox1.Location = New System.Drawing.Point(8, 8)
        Me.TextBox1.Multiline = True
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(264, 160)
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        "
        "TabPage2
        "
        Me.TabPage2.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox2})
        Me.TabPage2.Location = New System.Drawing.Point(4, 22)
        Me.TabPage2.Name = "TabPage2"
        Me.TabPage2.Size = New System.Drawing.Size(280, 174)
        Me.TabPage2.TabIndex = 1
        Me.TabPage2.Text = "C# "
        "
        "TextBox2
        "
        Me.TextBox2.Location = New System.Drawing.Point(8, 8)
        Me.TextBox2.Multiline = True
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(264, 160)
        Me.TextBox2.TabIndex = 0
        Me.TextBox2.Text = ""
        "
        "TabPage3
        "
        Me.TabPage3.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox3})
        Me.TabPage3.Location = New System.Drawing.Point(4, 22)
        Me.TabPage3.Name = "TabPage3"
        Me.TabPage3.Size = New System.Drawing.Size(280, 174)
        Me.TabPage3.TabIndex = 2
        Me.TabPage3.Text = "HTML"
        "
        "TextBox3
        "
        Me.TextBox3.Location = New System.Drawing.Point(8, 8)
        Me.TextBox3.Multiline = True
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.Size = New System.Drawing.Size(264, 160)
        Me.TextBox3.TabIndex = 0
        Me.TextBox3.Text = ""
        "
        "TabPage4
        "
        Me.TabPage4.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox4})
        Me.TabPage4.Location = New System.Drawing.Point(4, 22)
        Me.TabPage4.Name = "TabPage4"
        Me.TabPage4.Size = New System.Drawing.Size(280, 174)
        Me.TabPage4.TabIndex = 3
        Me.TabPage4.Text = "Upgrading"
        "
        "TextBox4
        "
        Me.TextBox4.Location = New System.Drawing.Point(8, 8)
        Me.TextBox4.Multiline = True
        Me.TextBox4.Name = "TextBox4"
        Me.TextBox4.Size = New System.Drawing.Size(264, 160)
        Me.TextBox4.TabIndex = 0
        Me.TextBox4.Text = ""
        "
        "Form1
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(528, 389)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.TabControl1})
        Me.Name = "Form1"
        Me.Text = "TabControlDemo"
        Me.TabControl1.ResumeLayout(False)
        Me.TabPage1.ResumeLayout(False)
        Me.TabPage2.ResumeLayout(False)
        Me.TabPage3.ResumeLayout(False)
        Me.TabPage4.ResumeLayout(False)
        Me.ResumeLayout(False)
    End Sub
#End Region
    Private Sub Form1_Activated(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Activated
        TextBox1.Text = "some text"
        TextBox2.Text = "some text"
        TextBox3.Text = "some text"
        TextBox4.Text = "some text"
    End Sub
End Class


Using TabControl to display various font settings

Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.IO
Public Class MainClass
   Shared Sub Main()
        Dim myform As Form = New FrmTabs()
        Application.Run(myform)
   End Sub " Main
End Class

Public Class FrmTabs
   Inherits Form
#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
   " output label reflects text changes
   Friend WithEvents lblDisplay As Label
   " table control containing table pages tbpColor,
   " tbpSize, tbpMessage and tbpAbout
   Friend WithEvents tbcTextOptions As TabControl
   " table page containing color options
   Friend WithEvents tbpColor As TabPage
   Friend WithEvents radBlack As RadioButton
   Friend WithEvents radRed As RadioButton
   Friend WithEvents radGreen As RadioButton
   " table page containing font size options
   Friend WithEvents tbpSize As TabPage
   Friend WithEvents radSize12 As RadioButton
   Friend WithEvents radSize16 As RadioButton
   Friend WithEvents radSize20 As RadioButton
   " table page containing text display options
   Friend WithEvents tbpMessage As TabPage
   Friend WithEvents radHello As RadioButton
   Friend WithEvents radGoodbye As RadioButton
   " table page containing about message
   Friend WithEvents tbpAbout As TabPage
   Friend WithEvents lblMessage As Label
   "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.radSize12 = New System.Windows.Forms.RadioButton()
      Me.radSize20 = New System.Windows.Forms.RadioButton()
      Me.radHello = New System.Windows.Forms.RadioButton()
      Me.lblDisplay = New System.Windows.Forms.Label()
      Me.tbpMessage = New System.Windows.Forms.TabPage()
      Me.radGoodbye = New System.Windows.Forms.RadioButton()
      Me.tbpAbout = New System.Windows.Forms.TabPage()
      Me.lblMessage = New System.Windows.Forms.Label()
      Me.radSize16 = New System.Windows.Forms.RadioButton()
      Me.tbpColor = New System.Windows.Forms.TabPage()
      Me.radGreen = New System.Windows.Forms.RadioButton()
      Me.radRed = New System.Windows.Forms.RadioButton()
      Me.radBlack = New System.Windows.Forms.RadioButton()
      Me.tbcTextOptions = New System.Windows.Forms.TabControl()
      Me.tbpSize = New System.Windows.Forms.TabPage()
      Me.tbpMessage.SuspendLayout()
      Me.tbpAbout.SuspendLayout()
      Me.tbpColor.SuspendLayout()
      Me.tbcTextOptions.SuspendLayout()
      Me.tbpSize.SuspendLayout()
      Me.SuspendLayout()
      "
      "radSize12
      "
      Me.radSize12.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radSize12.Location = New System.Drawing.Point(16, 24)
      Me.radSize12.Name = "radSize12"
      Me.radSize12.TabIndex = 0
      Me.radSize12.Text = "12 point"
      "
      "radSize20
      "
      Me.radSize20.Location = New System.Drawing.Point(16, 104)
      Me.radSize20.Name = "radSize20"
      Me.radSize20.TabIndex = 2
      Me.radSize20.Text = "20 point"
      "
      "radHello
      "
      Me.radHello.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radHello.Location = New System.Drawing.Point(16, 24)
      Me.radHello.Name = "radHello"
      Me.radHello.TabIndex = 0
      Me.radHello.Text = "Hello!"
      "
      "lblDisplay
      "
      Me.lblDisplay.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.lblDisplay.Location = New System.Drawing.Point(16, 184)
      Me.lblDisplay.Name = "lblDisplay"
      Me.lblDisplay.Size = New System.Drawing.Size(272, 40)
      Me.lblDisplay.TabIndex = 1
      Me.lblDisplay.Text = "Hello!"
      Me.lblDisplay.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
      "
      "tbpMessage
      "
      Me.tbpMessage.Controls.AddRange(New System.Windows.Forms.Control() {Me.radGoodbye, Me.radHello})
      Me.tbpMessage.Location = New System.Drawing.Point(4, 22)
      Me.tbpMessage.Name = "tbpMessage"
      Me.tbpMessage.TabIndex = 2
      Me.tbpMessage.Text = "Message"
      "
      "radGoodbye
      "
      Me.radGoodbye.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radGoodbye.Location = New System.Drawing.Point(16, 64)
      Me.radGoodbye.Name = "radGoodbye"
      Me.radGoodbye.TabIndex = 1
      Me.radGoodbye.Text = "Goodbye!"
      "
      "tbpAbout
      "
      Me.tbpAbout.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblMessage})
      Me.tbpAbout.Location = New System.Drawing.Point(4, 22)
      Me.tbpAbout.Name = "tbpAbout"
      Me.tbpAbout.TabIndex = 3
      Me.tbpAbout.Text = "About"
      "
      "lblMessage
      "
      Me.lblMessage.Font = New System.Drawing.Font("Microsoft Sans Serif", 14.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.lblMessage.Location = New System.Drawing.Point(16, 16)
      Me.lblMessage.Name = "lblMessage"
      Me.lblMessage.Size = New System.Drawing.Size(248, 104)
      Me.lblMessage.TabIndex = 0
      Me.lblMessage.Text = "This is a tab page."
      "
      "radSize16
      "
      Me.radSize16.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radSize16.Location = New System.Drawing.Point(16, 64)
      Me.radSize16.Name = "radSize16"
      Me.radSize16.TabIndex = 1
      Me.radSize16.Text = "16 point"
      "
      "tbpColor
      "
      Me.tbpColor.Controls.AddRange(New System.Windows.Forms.Control() {Me.radGreen, Me.radRed, Me.radBlack})
      Me.tbpColor.Location = New System.Drawing.Point(4, 22)
      Me.tbpColor.Name = "tbpColor"
      Me.tbpColor.TabIndex = 0
      Me.tbpColor.Text = "Color"
      "
      "radGreen
      "
      Me.radGreen.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radGreen.Location = New System.Drawing.Point(16, 104)
      Me.radGreen.Name = "radGreen"
      Me.radGreen.TabIndex = 2
      Me.radGreen.Text = "Green"
      "
      "radRed
      "
      Me.radRed.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radRed.Location = New System.Drawing.Point(16, 64)
      Me.radRed.Name = "radRed"
      Me.radRed.TabIndex = 1
      Me.radRed.Text = "Red"
      "
      "radBlack
      "
      Me.radBlack.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
      Me.radBlack.Location = New System.Drawing.Point(16, 24)
      Me.radBlack.Name = "radBlack"
      Me.radBlack.TabIndex = 0
      Me.radBlack.Text = "Black"
      "
      "tbcTextOptions
      "
      Me.tbcTextOptions.Controls.AddRange(New System.Windows.Forms.Control() {Me.tbpColor, Me.tbpSize, Me.tbpMessage, Me.tbpAbout})
      Me.tbcTextOptions.Location = New System.Drawing.Point(8, 8)
      Me.tbcTextOptions.Name = "tbcTextOptions"
      Me.tbcTextOptions.SelectedIndex = 0
      Me.tbcTextOptions.Size = New System.Drawing.Size(280, 168)
      Me.tbcTextOptions.TabIndex = 0
      "
      "tbpSize
      "
      Me.tbpSize.Controls.AddRange(New System.Windows.Forms.Control() {Me.radSize20, Me.radSize16, Me.radSize12})
      Me.tbpSize.Location = New System.Drawing.Point(4, 22)
      Me.tbpSize.Name = "tbpSize"
      Me.tbpSize.TabIndex = 1
      Me.tbpSize.Text = "Size"
      "
      "FrmTabs
      "
      Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
      Me.ClientSize = New System.Drawing.Size(292, 229)
      Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblDisplay, Me.tbcTextOptions})
      Me.Name = "FrmTabs"
      Me.Text = "Using Tabs"
      Me.tbpMessage.ResumeLayout(False)
      Me.tbpAbout.ResumeLayout(False)
      Me.tbpColor.ResumeLayout(False)
      Me.tbcTextOptions.ResumeLayout(False)
      Me.tbpSize.ResumeLayout(False)
      Me.ResumeLayout(False)
   End Sub
#End Region
   Private Sub radBlack_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radBlack.CheckedChanged
      lblDisplay.ForeColor = Color.Black
   End Sub
   Private Sub radRed_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radRed.CheckedChanged
      lblDisplay.ForeColor = Color.Red
   End Sub
   Private Sub radGreen_CheckedChanged _
      (ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radGreen.CheckedChanged
      lblDisplay.ForeColor = Color.Green
   End Sub
   Private Sub radSize12_CheckedChanged( _
      ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radSize12.CheckedChanged
      lblDisplay.Font = New Font(lblDisplay.Font.Name, 12)
   End Sub
   Private Sub radSize16_CheckedChanged _
      (ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radSize16.CheckedChanged
      lblDisplay.Font = New Font(lblDisplay.Font.Name, 16)
   End Sub
   Private Sub radSize20_CheckedChanged _
      (ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radSize20.CheckedChanged
      lblDisplay.Font = New Font(lblDisplay.Font.Name, 20)
   End Sub
   Private Sub radHello_CheckedChanged _
      (ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radHello.CheckedChanged
      lblDisplay.Text = "Hello!"
   End Sub
   Private Sub radGoodbye_CheckedChanged _
      (ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles radGoodbye.CheckedChanged
      lblDisplay.Text = "Goodbye!"
   End Sub
End Class
Источник — «http://vbex.ru/index.php?title=VB.Net/GUI/TabControl&oldid=509»