CheckBox with three states : CheckBox « GUI « VB.Net Tutorial

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VB.Net Tutorial » GUI » CheckBox 
14.4.4.CheckBox with three states
CheckBox with three states
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class CheckBoxThreeStates
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

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 NothingThen
                components.Dispose()
            End If
        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.
    Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
    Friend WithEvents CheckBox2 As System.Windows.Forms.CheckBox
    Friend WithEvents CheckBox3 As System.Windows.Forms.CheckBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()Private Sub InitializeComponent()
        Me.CheckBox1 = New System.Windows.Forms.CheckBox
        Me.CheckBox2 = New System.Windows.Forms.CheckBox
        Me.CheckBox3 = New System.Windows.Forms.CheckBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'CheckBox1
        '
        Me.CheckBox1.Location = New System.Drawing.Point(8864)
        Me.CheckBox1.Name = "CheckBox1"
        Me.CheckBox1.TabIndex = 0
        Me.CheckBox1.Text = "Unchecked"
        '
        'CheckBox2
        '
        Me.CheckBox2.Checked = True
        Me.CheckBox2.CheckState = System.Windows.Forms.CheckState.Checked
        Me.CheckBox2.Location = New System.Drawing.Point(88120)
        Me.CheckBox2.Name = "CheckBox2"
        Me.CheckBox2.TabIndex = 1
        Me.CheckBox2.Text = "Checked"
        '
        'CheckBox3
        '
        Me.CheckBox3.Checked = True
        Me.CheckBox3.CheckState = System.Windows.Forms.CheckState.Indeterminate
        Me.CheckBox3.Location = New System.Drawing.Point(88176)
        Me.CheckBox3.Name = "CheckBox3"
        Me.CheckBox3.TabIndex = 2
        Me.CheckBox3.Text = "Indeterminate"
        Me.CheckBox3.ThreeState = True
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(513)
        Me.ClientSize = New System.Drawing.Size(272229)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.CheckBox3)
        Me.Controls.Add(Me.CheckBox2)
        Me.Controls.Add(Me.CheckBox1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

End Class
14.4.CheckBox
14.4.1.CheckBox Check StatesCheckBox Check States
14.4.2.Using CheckBoxes to toggle italic and bold stylesUsing CheckBoxes to toggle italic and bold styles
14.4.3.CheckBox check/uncheck eventCheckBox check/uncheck event
14.4.4.CheckBox with three statesCheckBox with three states
14.4.5.Add objects to CheckedListBoxAdd objects to CheckedListBox
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