DependencyObject.DependencyObjectType Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets the DependencyObjectType that wraps the CLR type of this instance.
public:
property System::Windows::DependencyObjectType ^ DependencyObjectType { System::Windows::DependencyObjectType ^ get(); };
public System.Windows.DependencyObjectType DependencyObjectType { get; }
member this.DependencyObjectType : System.Windows.DependencyObjectType
Public ReadOnly Property DependencyObjectType As DependencyObjectType
Property Value
A DependencyObjectType that wraps the CLR type of this instance.
Examples
In the following pseudocode example, MySubClass
anticipates that additional derived classes might change the default value of the MyCustom
dependency property. The class implements a parameterless 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;
}
Remarks
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.
Applies to
See also
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈