Checked List Box selection event : CheckedListBox « GUI « VB.Net Tutorial






Checked List Box selection event
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class CheckBoxListAddValueSelectionEvent
   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 Nothing) Then
                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 CheckedListBox1 As System.Windows.Forms.CheckedListBox
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.CheckedListBox1 = New System.Windows.Forms.CheckedListBox

        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        '
        'CheckedListBox1
        '
        Me.CheckedListBox1.CheckOnClick = True
        Me.CheckedListBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.CheckedListBox1.Location = New System.Drawing.Point(96, 6)
        Me.CheckedListBox1.Name = "CheckedListBox1"
        Me.CheckedListBox1.Size = New System.Drawing.Size(120, 150)
        Me.CheckedListBox1.TabIndex = 0

        '
        'TextBox1
        '
        Me.TextBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.TextBox1.Location = New System.Drawing.Point(16, 184)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(296, 20)
        Me.TextBox1.TabIndex = 2
        Me.TextBox1.Text = "TextBox1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(15, 37)
        Me.ClientSize = New System.Drawing.Size(336, 229)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.CheckedListBox1)
        Me.Font = New System.Drawing.Font("Microsoft Sans Serif", 24.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        CheckedListBox1.Items.Add("Item 1", True)
        CheckedListBox1.Items.Add("Item 2", True)
        CheckedListBox1.Items.Add("Item 3", True)
        CheckedListBox1.Items.Add("Item 4", False)
        CheckedListBox1.Items.Add("Item 5", True)
        CheckedListBox1.Items.Add("Item 6", True)
        CheckedListBox1.Items.Add("Item 7", True)
        CheckedListBox1.Items.Add("Item 8", False)
        CheckedListBox1.Items.Add("Item 9", True)
        CheckedListBox1.Items.Add("Item 10", True)
        CheckedListBox1.Items.Add("Item 11", True)
    End Sub

    Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
        Select Case e.NewValue
            Case CheckState.Checked
                TextBox1.Text = "You checked Item " & e.Index
            Case CheckState.Unchecked
                TextBox1.Text = "You unchecked Item " & e.Index
        End Select
    End Sub

End Class








14.8.CheckedListBox
14.8.1.Add value to Checked List BoxAdd value to Checked List Box
14.8.2.Checked List Box selection eventChecked List Box selection event
14.8.3.CheckedListBox: Add Items, Get Selected Items and Get Selected IndicesCheckedListBox: Add Items, Get Selected Items and Get Selected Indices
14.8.4.Using the checked list boxes to add items to a list boxUsing the checked list boxes to add items to a list box