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AutomationElement.GetRuntimeId Method

Retrieves the unique identifier assigned to the user interface (UI) item.

Namespace:  System.Windows.Automation
Assembly:  UIAutomationClient (in UIAutomationClient.dll)
public int[] GetRuntimeId()

Return Value

Type: System.Int32[]
An array of integers representing the run-time identifier.
ExceptionCondition
ElementNotAvailableException

The UI for the AutomationElement no longer exists.

The identifier is only guaranteed to be unique to the UI of the desktop on which it was generated. Identifiers can be reused over time.

The format of run-time identifiers might change in future releases. The returned identifier should be treated as an opaque value and used only for comparison; for example, to determine whether an AutomationElement is in the cache.

The following example shows how to retrieve the run-time identifier of an AutomationElement.


// element is an AutomationElement.
int[] id = element.GetRuntimeId();


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.
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