FocusManager.LostFocus Event

  • Reference

Definition

Namespace:
Windows.UI.Xaml.Input
Edit

Occurs when an element within a container element (a focus scope) loses focus. This event is raised asynchronously, so focus might move again before bubbling is complete.

// Register
static event_token LostFocus(EventHandler<FocusManagerLostFocusEventArgs> const& handler) const;

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

// Revoke with event_revoker
static FocusManager::LostFocus_revoker LostFocus(auto_revoke_t, EventHandler<FocusManagerLostFocusEventArgs> const& handler) const;
public static event System.EventHandler<FocusManagerLostFocusEventArgs> LostFocus;
function onLostFocus(eventArgs) { /* Your code */ }
Windows.UI.Xaml.Input.FocusManager.addEventListener("lostfocus", onLostFocus);
Windows.UI.Xaml.Input.FocusManager.removeEventListener("lostfocus", onLostFocus);
- or -
Windows.UI.Xaml.Input.FocusManager.onlostfocus = onLostFocus;
Public Shared Custom Event LostFocus As EventHandler(Of FocusManagerLostFocusEventArgs)

Event Type

EventHandler<FocusManagerLostFocusEventArgs>

EventHandler<FocusManagerLostFocusEventArgs>

Windows requirements

Device family
Windows 10, version 1809 (introduced in 10.0.17763.0)
API contract
Windows.Foundation.UniversalApiContract (introduced in v7.0)

Remarks

We recommend using the UIElement focus routed events instead of FocusManager events whenever possible.

UIElement focus events bubble up to the FocusManager in the following order:

  1. UIElement.LosingFocus/FocusManager.LosingFocus
  2. UIElement.GettingFocus/FocusManager.GettingFocus
  3. UIElement.LostFocus routed event is raised by the element that lost focus and the event bubbles up
  4. FocusManager.LostFocus is raised (even if the routed event is marked handled)
  5. UIElement.GotFocus routed event is raised by the element that received focus and the event bubbles up
  6. FocusManager.GotFocus is raised (even if the routed event is marked handled)

Applies to

See also