Expander.Expanding 事件
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
發生于 展開工具 的內容區域開始顯示時。
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) 。
/// [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) 事件類型
- 屬性