MarkupExtension Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Provides a base class for XAML markup extension implementations that can be supported by Silverlight XAML processors.

Inheritance Hierarchy


Namespace:  System.Windows.Markup
Assembly:  System.Windows (in System.Windows.dll)


Public MustInherit Class MarkupExtension _
    Implements IMarkupExtension(Of Object)
public abstract class MarkupExtension : IMarkupExtension<Object>

The MarkupExtension type exposes the following members.


  Name Description
Protected method MarkupExtension Initializes a new instance of the MarkupExtension class.



  Name Description
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ProvideValue When implemented in a derived class, returns an object that is provided as the value of the target property for this markup extension.
Public method ToString Returns a string that represents the current object. (Inherited from Object.)



For most scenarios, custom markup extensions should implement the IMarkupExtension<T> interface and the ProvideValue method.

Version Information


Supported in: 5


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.