WindowsRuntimeSystemExtensions Class
AccessViolationException Class
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WeakReference(T) Class
WindowsRuntimeSystemExtensions Class
WindowsRuntimeSystemExtensions Methods
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WindowsRuntimeSystemExtensions Class

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.
[SECURITY CRITICAL]

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

Provides extension methods for converting between tasks and Windows Runtime asynchronous actions and operations.

This API is not CLS-compliant. 

System::Object
  System::WindowsRuntimeSystemExtensions

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

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The WindowsRuntimeSystemExtensions type exposes the following members.

  NameDescription
Public methodStatic memberAsAsyncActionReturns a Windows Runtime asynchronous action that represents a started task.
Public methodStatic memberAsAsyncOperation<TResult>Returns a Windows Runtime asynchronous operation that represents a started task that returns a result.
Public methodStatic memberAsTask(IAsyncAction)Returns a task that represents a Windows Runtime asynchronous action.
Public methodStatic memberAsTask(IAsyncAction, CancellationToken)Returns a task that represents a Windows Runtime asynchronous action that can be cancelled.
Public methodStatic memberAsTask<TProgress>(IAsyncActionWithProgress<TProgress>)Returns a task that represents a Windows Runtime asynchronous action.
Public methodStatic memberAsTask<TResult>(IAsyncOperation<TResult>)Returns a task that represents a Windows Runtime asynchronous operation returns a result.
Public methodStatic memberAsTask<TProgress>(IAsyncActionWithProgress<TProgress>, IProgress<TProgress>)Returns a task that represents a Windows Runtime asynchronous action that reports progress.
Public methodStatic memberAsTask<TProgress>(IAsyncActionWithProgress<TProgress>, CancellationToken)Returns a task that represents a Windows Runtime asynchronous action that can be cancelled.
Public methodStatic memberAsTask<TResult>(IAsyncOperation<TResult>, CancellationToken)Returns a task that represents a Windows Runtime asynchronous operation that returns a result and can be cancelled.
Public methodStatic memberAsTask<TProgress>(IAsyncActionWithProgress<TProgress>, CancellationToken, IProgress<TProgress>)Returns a task that represents a Windows Runtime asynchronous action that reports progress and can be cancelled.
Public methodStatic memberAsTask<TResult, TProgress>(IAsyncOperationWithProgress<TResult, TProgress>)Returns a task that represents a Windows Runtime asynchronous operation returns a result.
Public methodStatic memberAsTask<TResult, TProgress>(IAsyncOperationWithProgress<TResult, TProgress>, IProgress<TProgress>)Returns a task that represents Windows Runtime asynchronous operation that returns a result and reports progress.
Public methodStatic memberAsTask<TResult, TProgress>(IAsyncOperationWithProgress<TResult, TProgress>, CancellationToken)Returns a task that represents a Windows Runtime asynchronous operation that returns a result and can be cancelled.
Public methodStatic memberAsTask<TResult, TProgress>(IAsyncOperationWithProgress<TResult, TProgress>, CancellationToken, IProgress<TProgress>)Returns a task that represents a Windows Runtime asynchronous operation that returns a result, reports progress, and can be cancelled.
Public methodStatic memberGetAwaiter(IAsyncAction)Infrastructure. Returns an object that awaits an asynchronous action.
Public methodStatic memberGetAwaiter<TProgress>(IAsyncActionWithProgress<TProgress>)Infrastructure. Returns an object that awaits an asynchronous action that reports progress.
Public methodStatic memberGetAwaiter<TResult>(IAsyncOperation<TResult>)Infrastructure. Returns an object that awaits an asynchronous operation that returns a result.
Public methodStatic memberGetAwaiter<TResult, TProgress>(IAsyncOperationWithProgress<TResult, TProgress>)Infrastructure. Returns an object that awaits an asynchronous operation that reports progress and returns a result.
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Windows Phone OS

Supported in: 8.1, 8.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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