本文整理汇总了VB.NET中System.Windows.Forms.CheckBox.ThreeState属性的典型用法代码示例。如果您正苦于以下问题：VB.NET CheckBox.ThreeState属性的具体用法？VB.NET CheckBox.ThreeState怎么用？VB.NET CheckBox.ThreeState使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Windows.Forms.CheckBox的用法示例。
在下文中一共展示了CheckBox.ThreeState属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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
' 导入命名空间
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