FocusManager.GotFocus 事件

定义

当容器元素中的元素 (焦点范围) 接收焦点时发生。 此事件以异步方式引发,因此焦点可能会在冒泡完成之前移动。

// Register
static event_token GotFocus(EventHandler<FocusManagerGotFocusEventArgs> const& handler) const;

// Revoke with event_token
static void GotFocus(event_token const* cookie) const;

// Revoke with event_revoker
static FocusManager::GotFocus_revoker GotFocus(auto_revoke_t, EventHandler<FocusManagerGotFocusEventArgs> const& handler) const;
public static event System.EventHandler<FocusManagerGotFocusEventArgs> GotFocus;
function onGotFocus(eventArgs) { /* Your code */ }
Microsoft.UI.Xaml.Input.FocusManager.addEventListener("gotfocus", onGotFocus);
Microsoft.UI.Xaml.Input.FocusManager.removeEventListener("gotfocus", onGotFocus);
- or -
Microsoft.UI.Xaml.Input.FocusManager.ongotfocus = onGotFocus;
Public Shared Custom Event GotFocus As EventHandler(Of FocusManagerGotFocusEventArgs) 

事件类型

注解

建议尽可能使用 UIElement 焦点路由事件而不是 FocusManager 事件。

UIElement 焦点事件按以下顺序浮升到 FocusManager:

  1. UIElement.LosingFocus/FocusManager.LosingFocus
  2. UIElement.GettingFocus/FocusManager.GettingFocus
  3. UIElement.LostFocus 路由事件由失去焦点的元素引发,并且事件浮升
  4. 即使路由事件标记为已处理) ,focusManager.LostFocus 也会引发 (
  5. UIElement.GotFocus 路由事件由接收焦点的元素引发,事件浮升
  6. 即使路由事件标记为已处理) ,focusManager.GotFocus 也会 (引发

适用于

另请参阅