Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
LostFocus Event
Collapse the table of content
Expand the table of content

ContentElement.LostFocus Event

Occurs when this element loses logical focus.

Namespace:  System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public event RoutedEventHandler LostFocus
<object LostFocus="RoutedEventHandler" .../>

Identifier field

LostFocusEvent

Routing strategy

Bubbling

Delegate

RoutedEventHandler

  • There is no corresponding tunneling event.

  • Override OnLostFocus to implement class handling for this event in derived classes.

Logical focus differs from keyboard focus if focus is deliberately forced away by using a method call but the previous keyboard focus exists in a different scope. In this scenario, keyboard focus remains where it is, and the element where a Focus method is called still gets logical focus.

A more precise interpretation of this event is that it is raised when the value of the IsFocused property of an element in the route changes from true to false.

Because this event uses bubbling routing, the element that loses focus might be a child element instead of the element where the event handler is actually attached. Check the Source in the event data to determine the actual element that gained focus.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Show:
© 2015 Microsoft