VB.Net Tutorial/GUI/CheckedListBox
Содержание
Add value to Checked List Box
<source lang="vbnet">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.ruponentModel.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</source>
CheckedListBox: Add Items, Get Selected Items and Get Selected Indices
<source lang="vbnet">Imports System.Windows.Forms public class CheckedListBoxAddItemGetSelected
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.ruponentModel.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 btnAddItems As System.Windows.Forms.Button Friend WithEvents clb1 As System.Windows.Forms.CheckedListBox Friend WithEvents btnGetCheckedIndices As System.Windows.Forms.Button Friend WithEvents btnGetCheckedItems As System.Windows.Forms.Button Friend WithEvents ColorDialog1 As System.Windows.Forms.ColorDialog <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.btnAddItems = New System.Windows.Forms.Button() Me.clb1 = New System.Windows.Forms.CheckedListBox() Me.btnGetCheckedItems = New System.Windows.Forms.Button() Me.btnGetCheckedIndices = New System.Windows.Forms.Button() Me.ColorDialog1 = New System.Windows.Forms.ColorDialog() Me.SuspendLayout() " "btnAddItems " Me.btnAddItems.BackColor = System.Drawing.SystemColors.ControlLight Me.btnAddItems.Location = New System.Drawing.Point(176, 8) Me.btnAddItems.Name = "btnAddItems" Me.btnAddItems.Size = New System.Drawing.Size(104, 24) Me.btnAddItems.TabIndex = 3 Me.btnAddItems.Text = "Add Items" " "clb1 " Me.clb1.Location = New System.Drawing.Point(16, 8) Me.clb1.Name = "clb1" Me.clb1.Size = New System.Drawing.Size(144, 79) Me.clb1.TabIndex = 4 " "btnGetCheckedItems " Me.btnGetCheckedItems.BackColor = System.Drawing.SystemColors.ControlLight Me.btnGetCheckedItems.Location = New System.Drawing.Point(176, 40) Me.btnGetCheckedItems.Name = "btnGetCheckedItems" Me.btnGetCheckedItems.Size = New System.Drawing.Size(104, 24) Me.btnGetCheckedItems.TabIndex = 5 Me.btnGetCheckedItems.Text = "Checked by Item" " "btnGetCheckedIndices " Me.btnGetCheckedIndices.BackColor = System.Drawing.SystemColors.ControlLight Me.btnGetCheckedIndices.Location = New System.Drawing.Point(176, 72) Me.btnGetCheckedIndices.Name = "btnGetCheckedIndices" Me.btnGetCheckedIndices.Size = New System.Drawing.Size(104, 24) Me.btnGetCheckedIndices.TabIndex = 6 Me.btnGetCheckedIndices.Text = "Checked by Index" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(296, 277) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnGetCheckedIndices, Me.btnGetCheckedItems, Me.clb1, Me.btnAddItems}) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) End Sub
- End Region
Private Sub btnAddItems_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddItems.Click clb1.Items.Add("A", True) clb1.Items.Add("B", True) clb1.Items.Add("C", True) clb1.Items.Add("D", False) End Sub Private Sub btnGetCheckedItems_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetCheckedItems.Click Dim o As Object For Each o In clb1.CheckedItems Console.WriteLine(o.ToString) Next o End Sub Private Sub btnGetCheckedIndices_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetCheckedIndices.Click Dim o As Object For Each o In clb1.CheckedIndices Console.WriteLine(o) Next o End Sub
End Class</source>
Checked List Box selection event
<source lang="vbnet">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.ruponentModel.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</source>
Using the checked list boxes to add items to a list box
<source lang="vbnet">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.ruponentModel.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</source>