本文整理匯總了VB.NET中System.Windows.Forms.CheckBox.ThreeState屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET CheckBox.ThreeState屬性的具體用法？VB.NET CheckBox.ThreeState怎麽用？VB.NET CheckBox.ThreeState使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Windows.Forms.CheckBox的用法示例。
在下文中一共展示了CheckBox.ThreeState屬性的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: AdjustMyCheckBoxProperties
Private Sub AdjustMyCheckBoxProperties()
' Change the ThreeState and CheckAlign properties on every other click.
If Not checkBox1.ThreeState Then
checkBox1.ThreeState = True
checkBox1.CheckAlign = ContentAlignment.MiddleRight
Else
checkBox1.ThreeState = False
checkBox1.CheckAlign = ContentAlignment.MiddleLeft
End If
' Concatenate the property values together on three lines.
label1.Text = "ThreeState: " & checkBox1.ThreeState.ToString() & ControlChars.Cr & _
"Checked: " & checkBox1.Checked.ToString() & ControlChars.Cr & _
"CheckState: " & checkBox1.CheckState.ToString()
End Sub示例2: Module1
' 導入命名空間
Imports System.Windows.Forms
Module Module1
Sub Main()
Application.Run(New Form1)
End Sub
End Module
Public Class Form1
Inherits System.Windows.Forms.Form
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
Public Sub New()
MyBase.New()
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
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