Export (0) Print
Expand All

AutomationEventArgs.EventId Property

Gets the event identifier.

Namespace: System.Windows.Automation
Assembly: UIAutomationTypes (in uiautomationtypes.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public AutomationEvent EventId { get; }
/** @property */
public AutomationEvent get_EventId ()

public function get EventId () : AutomationEvent

Not applicable.

Property Value

The event identifier.

If a client has added event handlers for more than one event using the same AutomationEventHandler instance, EventId can be used to identify the event that the delegate should process.

In the following example, the event handler checks the EventId of the event and handles the event accordingly.

/// <summary>
/// AutomationEventHandler delegate.
/// </summary>
/// <param name="src">Object that raised the event.</param>
/// <param name="e">Event arguments.</param>
private void OnUIAutomationEvent(object src, AutomationEventArgs e)
{
    // Make sure the element still exists. Elements such as tooltips
    // can disappear before the event is processed.
    AutomationElement sourceElement;
    try
    {
        sourceElement = src as AutomationElement;
    }
    catch (ElementNotAvailableException ex)
    {
        return;
    }
    if (e.EventId == InvokePattern.InvokedEvent)
    {
        // TODO Add handling code.
    }
    else
    {
        // TODO Handle any other events that have been subscribed to.
    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

Community Additions

ADD
Show:
© 2014 Microsoft