本文整理匯總了VB.NET中System.Windows.Automation.AutomationElement.Cached屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET AutomationElement.Cached屬性的具體用法？VB.NET AutomationElement.Cached怎麽用？VB.NET AutomationElement.Cached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。
在下文中一共展示了AutomationElement.Cached屬性的1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: CachePropertiesWithScope
''' <summary>
''' Gets a list box element and caches the Name property of its children (the list items).
''' </summary>
''' <param name="elementMain">The UI Automation element for the parent window.</param>
Sub CachePropertiesWithScope(ByVal elementMain As AutomationElement)
Dim elementList As AutomationElement
' Set up the CacheRequest.
Dim cacheRequest As New CacheRequest()
cacheRequest.Add(AutomationElement.NameProperty)
cacheRequest.TreeScope = TreeScope.Element Or TreeScope.Children
' Activate the CacheRequest and get the element. Note that the scope of the CacheRequest
' is in relation to the object being retrieved: the list box and its children are
' cached, not the main window and its children.
Using cacheRequest.Activate()
' Load the list element and cache the specified properties for its descendants.
Dim myCondition As New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.List)
elementList = elementMain.FindFirst(TreeScope.Children, myCondition)
If elementList Is Nothing Then
Return
End If
' The following illustrates that the children of the list are in the cache.
Dim listItem As AutomationElement
For Each listItem In elementList.CachedChildren
Console.WriteLine(listItem.Cached.Name)
Next listItem
' The following call raises an exception, because the IsEnabled property was not cached.
'** Console.WriteLine(listItem.Cached.IsEnabled) **
' The following illustrates that because the list box itself was cached, it is now
' available as the CachedParent of each list item.
Dim child As AutomationElement = elementList.CachedChildren(0)
Console.WriteLine(child.CachedParent.Cached.Name)
End Using
End Sub