WindowsRuntimeSystemExtensions.AsAsyncOperation<TResult> Method

July 28, 2014

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.

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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