本文整理汇总了VB.NET中System.Windows.Threading.Dispatcher.CheckAccess方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Dispatcher.CheckAccess方法的具体用法？VB.NET Dispatcher.CheckAccess怎么用？VB.NET Dispatcher.CheckAccess使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了Dispatcher.CheckAccess方法的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: TryToUpdateButtonCheckAccess
' Uses the Dispatcher.CheckAccess method to determine if
' the calling thread has access to the thread the UI object is on.
Private Sub TryToUpdateButtonCheckAccess(ByVal uiObject As Object)
Dim theButton As Button = TryCast(uiObject, Button)
If theButton IsNot Nothing Then
' Checking if this thread has access to the object.
If theButton.Dispatcher.CheckAccess() Then
' This thread has access so it can update the UI thread.
UpdateButtonUI(theButton)
Else
' This thread does not have access to the UI thread.
' Place the update method on the Dispatcher of the UI thread.
theButton.Dispatcher.BeginInvoke(DispatcherPriority.Normal, New UpdateUIDelegate(AddressOf UpdateButtonUI), theButton)
End If
End If
End Sub