AsAsyncOperation(TResult) Method
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WindowsRuntimeSystemExtensions.AsAsyncOperation<TResult> Method

For apps that target Windows Phone OS 7.0 and 7.1, do not use any members of this type in your app. If you do, your code will throw a MethodAccessException. This type is security-critical, which restricts it to internal use by the .NET Framework for Windows Phone class library.

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Returns a Windows Runtime asynchronous operation that represents a started task that returns a result.

Namespace:  System
Assembly:  System.Runtime.WindowsRuntime (in System.Runtime.WindowsRuntime.dll)

public static IAsyncOperation<TResult> AsAsyncOperation<TResult>(
	this Task<TResult> source

Type Parameters


The type that returns the result.


Type: System.Threading.Tasks.Task<TResult>
The started task.

Return Value

Type: IAsyncOperation<TResult>
A Windows.Foundation.IAsyncOperation<TResult> instance that represents the started task.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Task<TResult>. When you use instance method syntax to call this method, omit the first parameter.

Windows Phone OS

Supported in: 8.1, 8.0

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