AnnotationService.GetService Method (DocumentViewerBase)


Returns the AnnotationService instance associated with a specified document viewing control.

Namespace:   System.Windows.Annotations
Assembly:  PresentationFramework (in PresentationFramework.dll)

public static AnnotationService GetService(
	DocumentViewerBase viewer


Type: System.Windows.Controls.Primitives.DocumentViewerBase

The document viewing control to return the AnnotationService instance for.

Return Value

Type: System.Windows.Annotations.AnnotationService

The AnnotationService associated with the given document viewing control; or null if the specified document viewing control has no AnnotationService.

Exception Condition

viewer is null.

The GetService method can be used to return the AnnotationService associated with the following document viewing controls:

The viewer control associated with the annotation service is specified in the parameter to the AnnotationService constructor.

.NET Framework
Available since 3.0
Return to top