Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.
This topic has not yet been rated - Rate this topic

UIElement.IsFocused Property

Gets a value that determines whether this element has logical focus. This is a dependency property.

Namespace:  System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
public bool IsFocused { get; }
You cannot set this property in XAML.

Property Value

Type: System.Boolean
true if this element has logical focus; otherwise, false.

Identifier field

IsFocusedProperty

Metadata properties set to true

None

Logical focus might differ from keyboard focus if an application has multiple focus divisions, such as between menu contents and the remainder of the application. In this scenario, keyboard focus can only be on one element of the application UI, however, certain elements in other focus divisions might still retain logical focus. For more information on logical focus, see Focus Overview.

You do not set focus by setting this property (it is read-only). The typical use for this property is to use it as a dependency property for a Setter or EventTrigger. To set focus programmatically, call Focus. Focus can also be set by user action or by control implementations, which possibly include mouse capture behavior.

The following example is a code handler that changes the background of a control when it is focused.

private void setColors(object sender, RoutedEventArgs e)
{
    if (myTextBox.IsFocused) myTextBox.Foreground = Brushes.Brown;
}

Another common way to achieve this same effect is to place a Trigger in the Style of a control; this approach does not require handling specific events with code-behind and allows designers greater access to the interactive and graphical nature of the UI. For an example, see How to: Create a Glow Effect on the Outer Edge of an Object.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

Show:
© 2014 Microsoft. All rights reserved.