WebViewControl.LostFocus Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Informs your app when the WebViewControl loses focus. May be initiated by the user clicking inside/outside the WebViewControl or by a programmatic focus change, such as the app calling SetFocus on a window that is not the WebViewControl or a MoveFocus method call.
// Register
event_token LostFocus(TypedEventHandler<WebViewControl, IInspectable const&> const& handler) const;
// Revoke with event_token
void LostFocus(event_token const* cookie) const;
// Revoke with event_revoker
WebViewControl::LostFocus_revoker LostFocus(auto_revoke_t, TypedEventHandler<WebViewControl, IInspectable const&> const& handler) const;public event TypedEventHandler<WebViewControl,object> LostFocus;function onLostFocus(eventArgs) { /* Your code */ }
webViewControl.addEventListener("lostfocus", onLostFocus);
webViewControl.removeEventListener("lostfocus", onLostFocus);
- or -
webViewControl.onlostfocus = onLostFocus;Public Custom Event LostFocus As TypedEventHandler(Of WebViewControl, Object) Event Type
TypedEventHandler<WebViewControl,IInspectable>
Windows requirements
| Requirements | Description |
|---|---|
| Device family |
Windows 10, version 1809 (introduced in 10.0.17763.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v7.0)
|
Examples
The following C# sample demonstrates an event using GotFocus and LostFocus with the WebViewControl:
WebViewControl webViewControl;
void WebViewControlGotFocus(WebViewControl sender, IInspectable args)
{
AddFocusHighlightToElement(sender);
}
void WebViewControlLostFocus(WebViewControl sender, IInspectable args)
{
RemoveFocusHighlightFromElement(sender);
}
webViewControl.GotFocus += WebViewControlGotFocus;
webViewControl.LostFocus += WebViewControlLostFocus
The GotFocus and LostFocus event tell the app when WebViewControl receives or loses focus. This could be due to a call to MoveFocus, or due to the user clicking inside/outside the WebViewControl.