в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:43:11Z

1 версия

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==Get CheckBox Selection state==

<source lang="vbnet">
Imports System.Windows.Forms

Module Module1
Sub Main()
Application.Run(New Form1)
End Sub
End Module

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 CheckBox1 As System.Windows.Forms.CheckBox
Friend WithEvents CheckBox2 As System.Windows.Forms.CheckBox
Friend WithEvents CheckBox3 As System.Windows.Forms.CheckBox
Friend WithEvents Label1 As System.Windows.Forms.Label
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.CheckBox1 = New System.Windows.Forms.CheckBox()
Me.CheckBox2 = New System.Windows.Forms.CheckBox()
Me.CheckBox3 = New System.Windows.Forms.CheckBox()
Me.Label1 = New System.Windows.Forms.Label()
Me.SuspendLayout()
"
"CheckBox1
"
Me.CheckBox1.Location = New System.Drawing.Point(24, 32)
Me.CheckBox1.Name = "CheckBox1"
Me.CheckBox1.TabIndex = 0
Me.CheckBox1.Text = "Item 1 "
Me.CheckBox1.ThreeState = True
"
"CheckBox2
"
Me.CheckBox2.Location = New System.Drawing.Point(24, 72)
Me.CheckBox2.Name = "CheckBox2"
Me.CheckBox2.Size = New System.Drawing.Size(136, 24)
Me.CheckBox2.TabIndex = 1
Me.CheckBox2.Text = "Item 2 "
Me.CheckBox2.ThreeState = True
"
"CheckBox3
"
Me.CheckBox3.Location = New System.Drawing.Point(24, 112)
Me.CheckBox3.Name = "CheckBox3"
Me.CheckBox3.Size = New System.Drawing.Size(144, 24)
Me.CheckBox3.TabIndex = 2
Me.CheckBox3.Text = "Item 3"
Me.CheckBox3.ThreeState = True
"
"Label1
"
Me.Label1.Location = New System.Drawing.Point(32, 176)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(224, 56)
Me.Label1.TabIndex = 3
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1, Me.CheckBox3, Me.CheckBox2, Me.CheckBox1})
Me.Name = "Form1"
Me.Text = "CheckBoxDemo"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub CheckBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.Click, CheckBox2.Click, CheckBox3.Click
Label1.Text = "Choices: "
If (CheckBox1.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox1.Text
End If
If (CheckBox1.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox1.Text & " (I)"
End If
If (CheckBox2.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox2.Text
End If
If (CheckBox2.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox2.Text & " (I)"
End If
If (CheckBox3.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox3.Text
End If
If (CheckBox3.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox3.Text & " (I)"
End If
Label1.Refresh()
End Sub
End Class

</source>

==Using CheckBoxes to toggle italic and bold styles==

<source lang="vbnet">
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Public Class MainClass
Shared Sub Main()
Dim myform As Form = New FrmCheckBox()
Application.Run(myform)
End Sub " Main
End Class
Public Class FrmCheckBox
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
Friend WithEvents chkItalic As System.Windows.Forms.CheckBox
Friend WithEvents lblOutput As System.Windows.Forms.Label
Friend WithEvents chkBold As System.Windows.Forms.CheckBox
"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.lblOutput = New System.Windows.Forms.Label()
Me.chkItalic = New System.Windows.Forms.CheckBox()
Me.chkBold = New System.Windows.Forms.CheckBox()
Me.SuspendLayout()
"
"lblOutput
"
Me.lblOutput.Font = New System.Drawing.Font("Microsoft Sans Serif", 11.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.lblOutput.Location = New System.Drawing.Point(48, 24)
Me.lblOutput.Name = "lblOutput"
Me.lblOutput.Size = New System.Drawing.Size(208, 24)
Me.lblOutput.TabIndex = 0
Me.lblOutput.Text = "Watch the font style change"
"
"chkItalic
"
Me.chkItalic.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.chkItalic.Location = New System.Drawing.Point(152, 64)
Me.chkItalic.Name = "chkItalic"
Me.chkItalic.Size = New System.Drawing.Size(64, 24)
Me.chkItalic.TabIndex = 2
Me.chkItalic.Text = "Italic"
"
"chkBold
"
Me.chkBold.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.chkBold.Location = New System.Drawing.Point(80, 64)
Me.chkBold.Name = "chkBold"
Me.chkBold.Size = New System.Drawing.Size(56, 24)
Me.chkBold.TabIndex = 1
Me.chkBold.Text = "Bold"
"
"FrmCheckBox
"
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
Me.ClientSize = New System.Drawing.Size(292, 117)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.chkItalic, Me.chkBold, Me.lblOutput})
Me.Font = New System.Drawing.Font("Microsoft Sans Serif", 9!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Name = "FrmCheckBox"
Me.Text = "CheckBoxTest"
Me.ResumeLayout(False)
End Sub
#End Region
" use Xor to toggle italic, keep other styles same
Private Sub chkItalic_CheckedChanged _
(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles chkItalic.CheckedChanged
lblOutput.Font = New Font(lblOutput.Font.Name, _
lblOutput.Font.Size, lblOutput.Font.Style _
Xor FontStyle.Italic)
End Sub " chkItalic_CheckedChanged
" use Xor to toggle bold, keep other styles same
Private Sub chkBold_CheckedChanged _
(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles chkBold.CheckedChanged
lblOutput.Font = New Font(lblOutput.Font.Name, _
lblOutput.Font.Size, lblOutput.Font.Style _
Xor FontStyle.Bold)
End Sub
End Class

</source>

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VB.Net/GUI/CheckBox - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия