AutomationEventArgs.EventId Propiedad

public:
 property System::Windows::Automation::AutomationEvent ^ EventId { System::Windows::Automation::AutomationEvent ^ get(); };

public System.Windows.Automation.AutomationEvent EventId { get; }

member this.EventId : System.Windows.Automation.AutomationEvent

Public ReadOnly Property EventId As AutomationEvent

Valor de propiedad

AutomationEvent

Identificador de evento.

Ejemplos

En el ejemplo siguiente, el controlador de eventos comprueba el EventId del evento y controla el evento en consecuencia.

/// <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)
    {
        return;
    }
    if (e.EventId == InvokePattern.InvokedEvent)
    {
        // TODO Add handling code.
    }
    else
    {
        // TODO Handle any other events that have been subscribed to.
    }
}

''' <summary>
''' AutomationEventHandler delegate.
''' </summary>
''' <param name="src">Object that raised the event.</param>
''' <param name="e">Event arguments.</param>
Private Sub OnUIAutomationEvent(ByVal src As Object, ByVal e As AutomationEventArgs)
    ' Make sure the element still exists. Elements such as tooltips can disappear
    ' before the event is processed.
    Dim sourceElement As AutomationElement
    Try
        sourceElement = DirectCast(src, AutomationElement)
    Catch ex As ElementNotAvailableException
        Exit Sub
    End Try
    If e.EventId Is InvokePattern.InvokedEvent Then
        ' TODO Add handling code.
    Else
    End If
    ' TODO Handle any other events that have been subscribed to.
    Console.WriteLine("Event: " & e.EventId.ProgrammaticName)
End Sub

Comentarios

Si un cliente ha agregado controladores de eventos para más de un evento mediante la misma AutomationEventHandler instancia, EventId se puede usar para identificar el evento que el delegado debe procesar.

Se aplica a