本文整理汇总了VB.NET中System.Windows.Forms.Control.ControlAccessibleObject类的典型用法代码示例。如果您正苦于以下问题：VB.NET Control.ControlAccessibleObject类的具体用法？VB.NET Control.ControlAccessibleObject怎么用？VB.NET Control.ControlAccessibleObject使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Control.ControlAccessibleObject类的1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: New
' 导入命名空间
Imports System.Windows.Forms
Imports Accessibility
Imports System.Drawing
Namespace MyCustomControls
Public Class MyCheckBox
Inherits CheckBox
Public Sub New()
' Make the check box appear like a toggle button.
Me.Appearance = Appearance.Button
' Center the text on the button.
Me.TextAlign = ContentAlignment.MiddleCenter
End Sub
' Create an instance of the AccessibleObject
' defined for the 'MyCheckBox' control
Protected Overrides Function CreateAccessibilityInstance() _
As AccessibleObject
Return New MyCheckBoxAccessibleObject(Me)
End Function
End Class
' Accessible object for use with the 'MyCheckBox' control.
Friend Class MyCheckBoxAccessibleObject
Inherits Control.ControlAccessibleObject
Public Sub New(owner As MyCheckBox)
MyBase.New(owner)
End Sub
Public Overrides ReadOnly Property DefaultAction() As String
Get
' Return the DefaultAction based upon
' the state of the control.
If CType(Owner, MyCheckBox).Checked Then
Return "Toggle button up"
Else
Return "Toggle button down"
End If
End Get
End Property
Public Overrides Property Name() As String
Get
' Return the Text property of the control
' if the AccessibleName is null.
Dim accessibleName As String = Owner.AccessibleName
If (accessibleName IsNot Nothing) Then
Return accessibleName
End If
Return CType(Owner, MyCheckBox).Text
End Get
Set
MyBase.Name = value
End Set
End Property
Public Overrides ReadOnly Property Role() As AccessibleRole
Get
' Since the check box appears like a button,
' make the Role the same as a button.
Return AccessibleRole.PushButton
End Get
End Property
End Class
End Namespace