Custom Tab : TabControl « GUI « VB.Net Tutorial






Custom Tab
Imports System.Windows.Forms
Imports System.Drawing

public class CustomTabControl
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    ' Draw ellipses in the tabs.
    Private Sub tabProject_DrawItem(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles tabProject.DrawItem
        ' Get the drawing bounds.
        Dim rect As Rectangle = e.Bounds
        If (e.State And DrawItemState.Selected) = DrawItemState.Selected Then
            ' Allow extra room for the selected tab.
            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

        ' Fill the ellipse with the right color.
        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

        ' Outline the ellipse in black.
        If (e.State And DrawItemState.Selected) = DrawItemState.Selected Then
            ' Use a thick line for the selected tab.
            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.CompilerServices.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.ComponentModel.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








14.37.TabControl
14.37.1.Tab ControlTab Control
14.37.2.TabControl and TabPagesTabControl and TabPages
14.37.3.Add new TabAdd new Tab
14.37.4.Using TabControl to display various font settingsUsing TabControl to display various font settings
14.37.5.Put RadioButtons to a Tab ControlPut RadioButtons to a Tab Control
14.37.6.Custom TabCustom Tab