FocusManager Class
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Provides utility methods related to element focus, without the need to handle focus-related events.
Inheritance Hierarchy
System.Object
System.Windows.Input.FocusManager
Namespace: System.Windows.Input
Assembly: System.Windows (in System.Windows.dll)
Syntax
'Declaration
Public NotInheritable Class FocusManager
public static class FocusManager
Methods
| Name | Description | |
|---|---|---|
.gif "Public method") .gif "Static member") .gif "Supported by Silverlight for Windows Phone") |
GetFocusedElement() | Queries the Silverlight focus system to determine which object has focus. |
|
GetFocusedElement(DependencyObject) | Gets the element with focus within the specified focus scope. |
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Remarks
Silverlight focus has the characteristic that while the focus-reporting events GotFocus and LostFocus are raised asynchronously, the focus returned by GetFocusedElement is determined synchronously. This design attempts to loosen constraints on runtime adjustments to element trees that could result from having to wait for the focus to be determined and moved. For cases where determining the synchronous focus is critical, use the GotFocus and LostFocus events as a cue, but then call FocusManager.GetFocusedElement to verify the synchronous focus.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.