NavigationView.BackRequested 事件

定義

命名空間:

Microsoft.UI.Xaml.Controls

發生于返回按鈕收到按一下或點選等互動時。

本檔適用于 Windows 應用程式 SDK 中適用于 WinUI 的 WinUI 2 for UWP (，請參閱Windows 應用程式 SDK命名空間) 。

// Register
event_token BackRequested(TypedEventHandler<NavigationView, NavigationViewBackRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
NavigationView::BackRequested_revoker BackRequested(auto_revoke_t, TypedEventHandler<NavigationView, NavigationViewBackRequestedEventArgs const&> const& handler) const;

public event TypedEventHandler<NavigationView,NavigationViewBackRequestedEventArgs> BackRequested;

Public Custom Event BackRequested As TypedEventHandler(Of NavigationView, NavigationViewBackRequestedEventArgs) 

<NavigationView BackRequested="eventhandler" />

事件類型

TypedEventHandler<NavigationView,NavigationViewBackRequestedEventArgs>

另請參閱

• NavigationViewBackRequestedEventArgs