Expander.Expanding Evento

  • Riferimento

Definizione

Spazio dei nomi:
Microsoft.UI.Xaml.Controls
Modifica

Si verifica quando viene visualizzata l'area del contenuto del espansore .

Questa documentazione si applica a WinUI 2 per UWP (per WinUI nella SDK per app di Windows, vedere gli spazi dei nomi SDK per app di Windows).

/// [Windows.Foundation.Metadata.Experimental]
/// [add: Windows.Foundation.Metadata.Experimental]
/// [remove: Windows.Foundation.Metadata.Experimental]
// Register
event_token Expanding(TypedEventHandler<Expander, ExpanderExpandingEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
Expander::Expanding_revoker Expanding(auto_revoke_t, TypedEventHandler<Expander, ExpanderExpandingEventArgs const&> const& handler) const;
// Register
event_token Expanding(TypedEventHandler<Expander, ExpanderExpandingEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
Expander::Expanding_revoker Expanding(auto_revoke_t, TypedEventHandler<Expander, ExpanderExpandingEventArgs const&> const& handler) const;
[Windows.Foundation.Metadata.Experimental]
[add: Windows.Foundation.Metadata.Experimental]
[remove: Windows.Foundation.Metadata.Experimental]
public event TypedEventHandler<Expander,ExpanderExpandingEventArgs> Expanding;
public event TypedEventHandler<Expander,ExpanderExpandingEventArgs> Expanding;
Public Custom Event Expanding As TypedEventHandler(Of Expander, ExpanderExpandingEventArgs)

Tipo evento

TypedEventHandler<Expander,ExpanderExpandingEventArgs>
Attributi
ExperimentalAttribute

Si applica a