TreeView.Expanding Kejadian

Definisi

Ruang nama:

Microsoft.UI.Xaml.Controls

Terjadi ketika simpul di pohon mulai meluas.

Dokumentasi ini berlaku untuk WinUI 2 untuk UWP (untuk WinUI di SDK Aplikasi Windows, lihat namespace SDK Aplikasi Windows).

// Register
event_token Expanding(TypedEventHandler<TreeView, TreeViewExpandingEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
TreeView::Expanding_revoker Expanding(auto_revoke_t, TypedEventHandler<TreeView, TreeViewExpandingEventArgs const&> const& handler) const;

public event TypedEventHandler<TreeView,TreeViewExpandingEventArgs> Expanding;

Public Custom Event Expanding As TypedEventHandler(Of TreeView, TreeViewExpandingEventArgs) 

Jenis Acara

TypedEventHandler<TreeView,TreeViewExpandingEventArgs>