共用方式為

NavigationView.BackRequested 事件

  • 參考

定義

命名空間:
Windows.UI.Xaml.Controls
編輯

發生于返回按鈕收到互動時，例如按一下或點選。

適用于 UWP 的對等 WinUI 2 API：Microsoft.UI.Xaml.Controls.NavigationView.BackRequested (Windows 應用程式 SDK，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;
function onBackRequested(eventArgs) { /* Your code */ }
navigationView.addEventListener("backrequested", onBackRequested);
navigationView.removeEventListener("backrequested", onBackRequested);
- or -
navigationView.onbackrequested = onBackRequested;
Public Custom Event BackRequested As TypedEventHandler(Of NavigationView, NavigationViewBackRequestedEventArgs) 
<NavigationView BackRequested="eventhandler" />

事件類型

TypedEventHandler<NavigationView,NavigationViewBackRequestedEventArgs>

Windows 需求

裝置系列
Windows 10, version 1803 (已於 10.0.17134.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v6.0 引進)

適用於

另請參閱