WindowsRuntimeSystemExtensions.AsTask<(Of <(TProgress>)>) Method (<(Of <(TProgress>)>), CancellationToken, IProgress<(Of <(TProgress>)>))

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 task that represents a Windows Runtime asynchronous action that reports progress and can be cancelled.

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


<ExtensionAttribute> _
Public Shared Function AsTask(Of TProgress) ( _
    source As IAsyncActionWithProgress(Of TProgress), _
    cancellationToken As CancellationToken, _
    progress As IProgress(Of TProgress) _
) As Task
public static Task AsTask<TProgress>(
    this IAsyncActionWithProgress<TProgress> source,
    CancellationToken cancellationToken,
    IProgress<TProgress> progress

Type Parameters

  • TProgress
    The type of object that provides data that indicates progress.


Return Value

Type: System.Threading.Tasks..::.Task
A task that represents the asynchronous action.

Usage Note

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

Version Information

Windows Phone OS

Supported in: 8.1, 8.0

See Also


WindowsRuntimeSystemExtensions Class

AsTask Overload

System Namespace