PropertyChangingEventHandler Delegado

Definición

Representa el método que controlará el evento PropertyChanging de una interfaz INotifyPropertyChanging.Represents the method that will handle the PropertyChanging event of an INotifyPropertyChanging interface.

public delegate void PropertyChangingEventHandler(System::Object ^ sender, PropertyChangingEventArgs ^ e);
public delegate void PropertyChangingEventHandler(object sender, PropertyChangingEventArgs e);
type PropertyChangingEventHandler = delegate of obj * PropertyChangingEventArgs -> unit
Public Delegate Sub PropertyChangingEventHandler(sender As Object, e As PropertyChangingEventArgs)

Parámetros

sender
Object

Origen del evento.The source of the event.

e
PropertyChangingEventArgs

Objeto PropertyChangingEventArgs que contiene los datos del evento.A PropertyChangingEventArgs that contains the event data.

Herencia
PropertyChangingEventHandler

Comentarios

PropertyChangingEventHandlerse incluye en la versión .NET Framework 3,5.PropertyChangingEventHandler is introduced in the .NET Framework version 3.5. Para más información, vea Versiones y dependencias.For more information, see Versions and Dependencies.

Cuando se crea un delegado PropertyChangingEventHandler, se identifica el método que controlará el evento.When you create a PropertyChangingEventHandler delegate, you identify the method that will handle the event. Para asociar el evento al controlador, se debe agregar una instancia del delegado al evento.To associate the event with your event handler, add an instance of the delegate to the event. Siempre que se produce el evento, se llama a su controlador, a menos que se quite el delegado.The event handler is called whenever the event occurs, unless you remove the delegate. Para obtener más información sobre los delegados de controladores de eventos, vea controlar y provocar eventos.For more information about event-handler delegates, see Handling and Raising Events.

Métodos de extensión

GetMethodInfo(Delegate)

Obtiene un objeto que representa el método representado por el delegado especificado.Gets an object that represents the method represented by the specified delegate.

Se aplica a