AdornerLayer Class
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace: http://schemas.microsoft.com/winfx/2006/xaml/presentation
An adorner layer is guaranteed to be at a higher Z-order than the element(s) being adorned, so adorners are always rendered on top of the adorned element.
Note: |
|---|
| The parent of an Adorner is the AdornerLayer that renders the Adorner, not the element being adorned. |
Note: |
|---|
| Anything placed in the adorner layer is rendered on top of the rest of any styles you have set. In other words, adorners are always visually on top and cannot be overridden using z-order. |
This example shows how to programmatically bind an adorner to a specified UIElement.
To bind an adorner to a particular UIElement, follow these steps:
-
Call the static method GetAdornerLayer to get an AdornerLayer object for the UIElement to be adorned. GetAdornerLayer walks up the visual tree, starting at the specified UIElement, and returns the first adorner layer it finds. (If no adorner layers are found, the method returns null.)
-
Call the Add method to bind the adorner to the target UIElement.
The following example binds a SimpleCircleAdorner (shown above) to a TextBox named myTextBox.
myAdornerLayer = AdornerLayer.GetAdornerLayer(myTextBox)
myAdornerLayer.Add(New SimpleCircleAdorner(myTextBox))
Note: |
|---|
| Using Extensible Application Markup Language (XAML) to bind an adorner to another element is currently not supported. |
More Code
| How to: Adorn the Children of a Panel | This example shows how to programmatically bind an adorner to the children of a specified Panel. |
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Media.Visual
System.Windows.UIElement
System.Windows.FrameworkElement
System.Windows.Documents.AdornerLayer
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Reference
AdornerLayer MembersSystem.Windows.Documents Namespace
AdornerDecorator
Adorner
Other Resources
Adorners OverviewImplement an Adorner
Bind an Adorner to an Element
Adorn the Children of a Panel
Remove an Adorner from an Element
Remove all Adorners from an Element
SimpleCircleAdorner Sample
ResizingAdorner Sample
Add and Remove Adorners Sample
Note: