CommandBinding.Executed Evento
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Se produce cuando se ejecuta el comando asociado a este CommandBinding.
public:
event System::Windows::Input::ExecutedRoutedEventHandler ^ Executed;public event System.Windows.Input.ExecutedRoutedEventHandler Executed;member this.Executed : System.Windows.Input.ExecutedRoutedEventHandler Public Custom Event Executed As ExecutedRoutedEventHandler Public Event Executed As ExecutedRoutedEventHandler Tipo de evento
Ejemplos
En el ejemplo siguiente se crea un CommandBinding objeto que asigna un ExecutedRoutedEventHandler y un CanExecuteRoutedEventArgs controlador al Open comando .
<Window.CommandBindings>
<CommandBinding Command="ApplicationCommands.Open"
Executed="OpenCmdExecuted"
CanExecute="OpenCmdCanExecute"/>
</Window.CommandBindings>
// Creating CommandBinding and attaching an Executed and CanExecute handler
CommandBinding OpenCmdBinding = new CommandBinding(
ApplicationCommands.Open,
OpenCmdExecuted,
OpenCmdCanExecute);
this.CommandBindings.Add(OpenCmdBinding);
' Creating CommandBinding and attaching an Executed and CanExecute handler
Dim OpenCmdBinding As New CommandBinding(ApplicationCommands.Open, AddressOf OpenCmdExecuted, AddressOf OpenCmdCanExecute)
Me.CommandBindings.Add(OpenCmdBinding)
A continuación se muestra el ExecutedRoutedEventHandler objeto que crea un MessageBox objeto cuando se ejecuta el comando .
void OpenCmdExecuted(object target, ExecutedRoutedEventArgs e)
{
String command, targetobj;
command = ((RoutedCommand)e.Command).Name;
targetobj = ((FrameworkElement)target).Name;
MessageBox.Show("The " + command + " command has been invoked on target object " + targetobj);
}
Private Sub OpenCmdExecuted(ByVal sender As Object, ByVal e As ExecutedRoutedEventArgs)
Dim command, targetobj As String
command = CType(e.Command, RoutedCommand).Name
targetobj = CType(sender, FrameworkElement).Name
MessageBox.Show("The " + command + " command has been invoked on target object " + targetobj)
End Sub
Comentarios
Cuando se ejecuta , RoutedCommand genera el PreviewExecuted evento en el destino del comando. Si el PreviewExecuted evento no se controla, el Executed evento se genera en el destino del comando. Si el destino del comando tiene un CommandBinding para el comando específico, se llama al Executed controlador de .CommandBinding Si el destino del comando no tiene un CommandBinding para ese comando específico, el Executed evento propaga el árbol de elementos en busca de un elemento que tenga asociado CommandBinding al comando . Si no se encuentra , CommandBinding el comando no se controla.
Información sobre eventos enrutados
| Campo identificador | ExecutedEvent |
| Estrategia de enrutamiento | Burbujeante |
| Delegado | ExecutedRoutedEventHandler |
- El evento de tunelización correspondiente es PreviewExecuted.
