NativeActivityMetadata.RequireExtension 方法
定义
重载
| RequireExtension(Type) |
指定活动在运行时需要一个指定类型的扩展。Specifies that the activity requires an extension of the specified type at runtime. |
| RequireExtension<T>() |
指定活动在运行时需要一个指定泛型类型的扩展。Specifies that the activity requires an extension of the specified generic type at runtime. |
RequireExtension(Type)
指定活动在运行时需要一个指定类型的扩展。Specifies that the activity requires an extension of the specified type at runtime.
public:
void RequireExtension(Type ^ extensionType);
public void RequireExtension (Type extensionType);
member this.RequireExtension : Type -> unit
Public Sub RequireExtension (extensionType As Type)
参数
- extensionType
- Type
扩展的类型。The type of the extension.
注解
如果主机无法提供指定类型的扩展,验证将失败。If the host fails to provide an extension of the specified type, validation fails.
适用于
RequireExtension<T>()
指定活动在运行时需要一个指定泛型类型的扩展。Specifies that the activity requires an extension of the specified generic type at runtime.
public:
generic <typename T>
where T : class void RequireExtension();
public void RequireExtension<T> () where T : class;
member this.RequireExtension : unit -> unit (requires 'T : null)
Public Sub RequireExtension(Of T As Class) ()
类型参数
- T
扩展的类型。The type of the extension.
注解
如果主机无法提供指定类型的扩展,验证将失败。If the host fails to provide an extension of the specified type, validation fails.