ListBox.Items.RemoveAt
Imports System.Windows.Forms
public class DualList
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Sub btnAddSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddSource.Click
lstSource.Items.Add("A")
End Sub
Private Sub btnAddDestination_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddDestination.Click
lstDestination.Items.Add("B")
End Sub
Private Sub btnClearSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClearSource.Click
lstSource.Items.Clear()
End Sub
Private Sub btnClearDestination_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClearDestination.Click
lstDestination.Items.Clear()
End Sub
Private Sub btnRemoveSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRemoveSource.Click
If lstSource.SelectedItems.Count > 0 Then
lstSource.Items.Remove(lstSource.SelectedItem)
End If
End Sub
Private Sub btnRemoveDestination_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRemoveDestination.Click
Dim intCounter As Integer
For intCounter = 0 To lstDestination.SelectedIndices.Count - 1
lstDestination.Items.RemoveAt(lstDestination.SelectedIndices(0))
Next intCounter
End Sub
Private Sub btnMoveDestination_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMoveDestination.Click
If lstSource.SelectedItems.Count > 0 Then
lstDestination.Items.Add(lstSource.SelectedItem)
lstSource.Items.RemoveAt(lstSource.SelectedIndex)
End If
End Sub
Private Sub btnMoveSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMoveSource.Click
Dim intCounter As Integer
For intCounter = 0 To lstDestination.SelectedIndices.Count - 1
lstSource.Items.Add(lstDestination.Items(lstDestination.SelectedIndices(0)))
lstDestination.Items.Remove(lstDestination.Items(lstDestination.SelectedIndices(0)))
Next intCounter
End Sub
Private Sub btnMoveAllDestination_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMoveAllDestination.Click
Dim intCounter As Integer
For intCounter = 0 To lstSource.Items.Count - 1
lstDestination.Items.Add(lstSource.Items(0))
lstSource.Items.RemoveAt(0)
Next intCounter
End Sub
Private Sub btnMoveAllSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMoveAllSource.Click
Dim intCounter As Integer
For intCounter = 0 To lstDestination.Items.Count - 1
lstSource.Items.Add(lstDestination.Items(0))
lstDestination.Items.RemoveAt(0)
Next intCounter
End Sub
End Class
Partial Public Class Form1
Inherits System.Windows.Forms.Form
<System.Diagnostics.DebuggerNonUserCode()> _
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
End Sub
'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.lstSource = New System.Windows.Forms.ListBox
Me.lstDestination = New System.Windows.Forms.ListBox
Me.btnMoveAllDestination = New System.Windows.Forms.Button
Me.btnMoveDestination = New System.Windows.Forms.Button
Me.btnMoveSource = New System.Windows.Forms.Button
Me.btnMoveAllSource = New System.Windows.Forms.Button
Me.btnAddSource = New System.Windows.Forms.Button
Me.btnRemoveSource = New System.Windows.Forms.Button
Me.btnClearSource = New System.Windows.Forms.Button
Me.btnAddDestination = New System.Windows.Forms.Button
Me.btnRemoveDestination = New System.Windows.Forms.Button
Me.btnClearDestination = New System.Windows.Forms.Button
Me.Label1 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.SuspendLayout()
'
'lstSource
'
Me.lstSource.FormattingEnabled = True
Me.lstSource.Location = New System.Drawing.Point(21, 25)
Me.lstSource.Name = "lstSource"
Me.lstSource.Size = New System.Drawing.Size(162, 199)
Me.lstSource.TabIndex = 0
'
'lstDestination
'
Me.lstDestination.FormattingEnabled = True
Me.lstDestination.Location = New System.Drawing.Point(254, 25)
Me.lstDestination.Name = "lstDestination"
Me.lstDestination.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended
Me.lstDestination.Size = New System.Drawing.Size(162, 199)
Me.lstDestination.Sorted = True
Me.lstDestination.TabIndex = 1
'
'btnMoveAllDestination
'
Me.btnMoveAllDestination.Location = New System.Drawing.Point(201, 48)
Me.btnMoveAllDestination.Name = "btnMoveAllDestination"
Me.btnMoveAllDestination.Size = New System.Drawing.Size(36, 28)
Me.btnMoveAllDestination.TabIndex = 2
Me.btnMoveAllDestination.Text = ">>"
'
'btnMoveDestination
'
Me.btnMoveDestination.Location = New System.Drawing.Point(201, 83)
Me.btnMoveDestination.Name = "btnMoveDestination"
Me.btnMoveDestination.Size = New System.Drawing.Size(36, 28)
Me.btnMoveDestination.TabIndex = 3
Me.btnMoveDestination.Text = ">"
'
'btnMoveSource
'
Me.btnMoveSource.Location = New System.Drawing.Point(201, 141)
Me.btnMoveSource.Name = "btnMoveSource"
Me.btnMoveSource.Size = New System.Drawing.Size(36, 28)
Me.btnMoveSource.TabIndex = 4
Me.btnMoveSource.Text = "<"
'
'btnMoveAllSource
'
Me.btnMoveAllSource.Location = New System.Drawing.Point(201, 176)
Me.btnMoveAllSource.Name = "btnMoveAllSource"
Me.btnMoveAllSource.Size = New System.Drawing.Size(36, 28)
Me.btnMoveAllSource.TabIndex = 5
Me.btnMoveAllSource.Text = "<<"
'
'btnAddSource
'
Me.btnAddSource.Location = New System.Drawing.Point(21, 237)
Me.btnAddSource.Name = "btnAddSource"
Me.btnAddSource.Size = New System.Drawing.Size(161, 24)
Me.btnAddSource.TabIndex = 6
Me.btnAddSource.Text = "Add Item"
'
'btnRemoveSource
'
Me.btnRemoveSource.Location = New System.Drawing.Point(22, 268)
Me.btnRemoveSource.Name = "btnRemoveSource"
Me.btnRemoveSource.Size = New System.Drawing.Size(161, 24)
Me.btnRemoveSource.TabIndex = 7
Me.btnRemoveSource.Text = "Remove Item"
'
'btnClearSource
'
Me.btnClearSource.Location = New System.Drawing.Point(22, 299)
Me.btnClearSource.Name = "btnClearSource"
Me.btnClearSource.Size = New System.Drawing.Size(161, 24)
Me.btnClearSource.TabIndex = 8
Me.btnClearSource.Text = "Clear Items"
'
'btnAddDestination
'
Me.btnAddDestination.Location = New System.Drawing.Point(254, 237)
Me.btnAddDestination.Name = "btnAddDestination"
Me.btnAddDestination.Size = New System.Drawing.Size(161, 24)
Me.btnAddDestination.TabIndex = 9
Me.btnAddDestination.Text = "Add Item"
'
'btnRemoveDestination
'
Me.btnRemoveDestination.Location = New System.Drawing.Point(254, 268)
Me.btnRemoveDestination.Name = "btnRemoveDestination"
Me.btnRemoveDestination.Size = New System.Drawing.Size(161, 24)
Me.btnRemoveDestination.TabIndex = 10
Me.btnRemoveDestination.Text = "Remove Item(s)"
'
'btnClearDestination
'
Me.btnClearDestination.Location = New System.Drawing.Point(254, 299)
Me.btnClearDestination.Name = "btnClearDestination"
Me.btnClearDestination.Size = New System.Drawing.Size(161, 24)
Me.btnClearDestination.TabIndex = 11
Me.btnClearDestination.Text = "Clear Items"
'
'Label1
'
Me.Label1.AutoSize = True
Me.Label1.Location = New System.Drawing.Point(20, 6)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(74, 14)
Me.Label1.TabIndex = 12
Me.Label1.Text = "Unsorted List:"
'
'Label2
'
Me.Label2.AutoSize = True
Me.Label2.Location = New System.Drawing.Point(254, 6)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(61, 14)
Me.Label2.TabIndex = 13
Me.Label2.Text = "Sorted List:"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(438, 340)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.btnClearDestination)
Me.Controls.Add(Me.btnRemoveDestination)
Me.Controls.Add(Me.btnAddDestination)
Me.Controls.Add(Me.btnClearSource)
Me.Controls.Add(Me.btnRemoveSource)
Me.Controls.Add(Me.btnAddSource)
Me.Controls.Add(Me.btnMoveAllSource)
Me.Controls.Add(Me.btnMoveSource)
Me.Controls.Add(Me.btnMoveDestination)
Me.Controls.Add(Me.btnMoveAllDestination)
Me.Controls.Add(Me.lstDestination)
Me.Controls.Add(Me.lstSource)
Me.Name = "Form1"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "ListDemo"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents lstSource As System.Windows.Forms.ListBox
Friend WithEvents lstDestination As System.Windows.Forms.ListBox
Friend WithEvents btnMoveAllDestination As System.Windows.Forms.Button
Friend WithEvents btnMoveDestination As System.Windows.Forms.Button
Friend WithEvents btnMoveSource As System.Windows.Forms.Button
Friend WithEvents btnMoveAllSource As System.Windows.Forms.Button
Friend WithEvents btnAddSource As System.Windows.Forms.Button
Friend WithEvents btnRemoveSource As System.Windows.Forms.Button
Friend WithEvents btnClearSource As System.Windows.Forms.Button
Friend WithEvents btnAddDestination As System.Windows.Forms.Button
Friend WithEvents btnRemoveDestination As System.Windows.Forms.Button
Friend WithEvents btnClearDestination As System.Windows.Forms.Button
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
End Class
Related examples in the same category