TreeWalker.GetPreviousSibling Method (AutomationElement, CacheRequest)
Retrieves the previous sibling of the specified AutomationElement and caches properties and patterns.
Assembly: UIAutomationClient (in UIAutomationClient.dll)
public AutomationElement GetPreviousSibling( AutomationElement element, CacheRequest request )
- Type: System.Windows.Automation.AutomationElement
The element from which to retrieve the previous sibling.
Return ValueType: System.Windows.Automation.AutomationElement
The previous sibling element, or a null reference (Nothing in Microsoft Visual Basic .NET) if there is no such element.
An AutomationElement can have additional sibling elements that do not match the current view condition and thus are not returned when navigating the element tree.
The structure of the AutomationElement tree changes as the visible user interface (UI) elements on the desktop change. It is not guaranteed that an element returned as the previous sibling element will be returned as the previous sibling on subsequent passes.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.