Questa documentazione è stata archiviata e non viene gestita.

Proprietà DependencyObject.DependencyObjectType

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

Spazio dei nomi: System.Windows
Assembly: WindowsBase (in windowsbase.dll)
Spazio dei nomi XML:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

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

public function get DependencyObjectType () : DependencyObjectType

Non è possibile utilizzare questa proprietà in XAML.

Valore proprietà

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;

}

Microsoft .NET Framework 3.0 è supportato in Windows Vista, Microsoft Windows XP SP2 e Windows Server 2003 SP1.

.NET Framework

Supportato in:
Mostra: