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DependencyObject.DependencyObjectType Property

Gets the DependencyObjectType that wraps the CLR type of this instance.

Namespace: System.Windows
Assembly: WindowsBase (in windowsbase.dll)
XML Namespace:

public DependencyObjectType DependencyObjectType { get; }
/** @property */
public DependencyObjectType get_DependencyObjectType ()

public function get DependencyObjectType () : DependencyObjectType

You cannot use this property in XAML.

Property Value

A DependencyObjectType that wraps the CLR type of this instance.

This property is useful if an object that is returned from a method has a return value type of DependencyObject and you want to perform property system specific operations on it depending on its type. For example it is more efficient to call GetMetadata(DependencyObjectType) using the DependencyObjectType rather than the CLR type. DependencyObjectType facilitates faster lookup.

In the following example, MySubClass anticipates that additional derived classes might change the default value of the MyCustom dependency property. The class implements a default constructor that can determine the actual derived class by taking advantage of polymorphism on the DependencyObjectType value whenever that constructor is used as a derived class instantiator.

public DOClass() : base()


__customPropertyCache = (CustomDP) CustomDPProperty.GetMetadata(DependencyObjectType).DefaultValue;


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.

.NET Framework

Supported in: 3.0