ActivityContext.GetExtension<T> 方法

定義

命名空間:

System.Activities

組件:

System.Activities.dll

傳回指定型別的擴充。

public:
generic <typename T>
 where T : class T GetExtension();

public T GetExtension<T> () where T : class;

member this.GetExtension : unit -> 'T (requires 'T : null)

Public Function GetExtension(Of T As Class) () As T

類型參數

T

要擷取的擴充的型別。

傳回

T

如果存在，則為指定型別的擴充，否則為 null。