WindowsRuntimeSystemExtensions.AsAsyncAction(Task) Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.WindowsRuntime.dll

Important

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Returns a Windows Runtime asynchronous action that represents a started task.

public:
[System::Runtime::CompilerServices::Extension]
 static Windows::Foundation::IAsyncAction ^ AsAsyncAction(System::Threading::Tasks::Task ^ source);

public static Windows.Foundation.IAsyncAction AsAsyncAction (this System.Threading.Tasks.Task source);

static member AsAsyncAction : System.Threading.Tasks.Task -> Windows.Foundation.IAsyncAction

<Extension()>
Public Function AsAsyncAction (source As Task) As IAsyncAction

Parameters

source: Task

The started task.

Returns

IAsyncAction

A IAsyncAction instance that represents the started task.

Exceptions

ArgumentNullException

source is null.

InvalidOperationException

source is an unstarted task.

Remarks

Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Task. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Use this method when you want to pass a task to a Windows Runtime method that takes an asynchronous action.

The AsyncInfo class provides static methods (Shared methods in Visual Basic) that create and start Windows Runtime asynchronous actions that represent tasks that can respond to cancellation requests and report progress.

Applies to