AppBar.Opening Evento

Definición

Espacio de nombres:

Microsoft.UI.Xaml.Controls

Se produce cuando appBar comienza a cambiar de oculto a visible.

// Register
event_token Opening(EventHandler<IInspectable> const& handler) const;

// Revoke with event_token
void Opening(event_token const* cookie) const;

// Revoke with event_revoker
AppBar::Opening_revoker Opening(auto_revoke_t, EventHandler<IInspectable> const& handler) const;

public event System.EventHandler<object> Opening;

function onOpening(eventArgs) { /* Your code */ }
appBar.addEventListener("opening", onOpening);
appBar.removeEventListener("opening", onOpening);
- or -
appBar.onopening = onOpening;

Public Custom Event Opening As EventHandler(Of Object) 

<AppBar Opening="eventhandler"/>

Tipo de evento

EventHandler<Object>

EventHandler<Object>

EventHandler<IInspectable>

Comentarios

El evento Opening se produce antes de que comience la animación de transición.