в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:57:32Z

1 версия

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==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>

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VB.Net Tutorial/GUI/CheckedListBox - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия