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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)

member IsFocused : bool

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 an Outer Glow Effect.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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