Using the checked list boxes to add items to a list box : CheckedListBox « GUI « VB.Net Tutorial






Using the checked list boxes to add items to a list box
Imports System.Windows.Forms

public class CheckedListBoxAddRemove
   public Shared Sub Main
        Application.Run(New FrmCheckedListBox)
   End Sub
End class

Public Class FrmCheckedListBox
   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

   ' list of available book titles
   Friend WithEvents chklstInput As CheckedListBox

   ' user selection list
   Friend WithEvents lstDisplay As ListBox

   'Required by the Windows Form Designer
   Private components As System.ComponentModel.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.chklstInput = New System.Windows.Forms.CheckedListBox()
      Me.lstDisplay = New System.Windows.Forms.ListBox()
      Me.SuspendLayout()
      '
      'chklstInput
      '
      Me.chklstInput.HorizontalScrollbar = True
      Me.chklstInput.Items.AddRange(New Object() {"A", "B", "C", "D", "E", "F", "G", "H"})
      Me.chklstInput.Location = New System.Drawing.Point(16, 16)
      Me.chklstInput.Name = "chklstInput"
      Me.chklstInput.Size = New System.Drawing.Size(152, 124)
      Me.chklstInput.TabIndex = 1
      '
      'lstDisplay
      '
      Me.lstDisplay.Anchor = (System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right)
      Me.lstDisplay.HorizontalScrollbar = True
      Me.lstDisplay.Location = New System.Drawing.Point(184, 16)
      Me.lstDisplay.Name = "lstDisplay"
      Me.lstDisplay.Size = New System.Drawing.Size(128, 121)
      Me.lstDisplay.TabIndex = 2
      '
      'FrmCheckedListBox
      '
      Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
      Me.ClientSize = New System.Drawing.Size(328, 157)
      Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lstDisplay, Me.chklstInput})
      Me.Name = "FrmCheckedListBox"
      Me.Text = "Checked List Box Test"
      Me.ResumeLayout(False)

   End Sub

#End Region

   Private Sub chklstInput_ItemCheck _
      (ByVal sender As System.Object, _
      ByVal e As System.Windows.Forms.ItemCheckEventArgs) _
      Handles chklstInput.ItemCheck

      Dim item As String = chklstInput.SelectedItem

      If e.NewValue = CheckState.Checked Then
         lstDisplay.Items.Add(item)
      Else
         lstDisplay.Items.Remove(item)
      End If

   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