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TaskFactory.FromAsync Method (IAsyncResult, Action<IAsyncResult>)

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

Creates a Task that executes an end method action when a specified IAsyncResult completes.

Namespace:  System.Threading.Tasks
Assembly:  mscorlib (in mscorlib.dll)

public Task FromAsync(
	IAsyncResult asyncResult,
	Action<IAsyncResult> endMethod
)

Parameters

asyncResult
Type: System.IAsyncResult
The IAsyncResult whose completion should trigger the processing of the endMethod.
endMethod
Type: System.Action<IAsyncResult>
The action delegate that processes the completed asyncResult.

Return Value

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

ExceptionCondition
ArgumentNullException

The exception that is thrown when the asyncResult argument is null.

-or-

The exception that is thrown when the endMethod argument is null.

Windows Phone OS

Supported in: 8.1, 8.0

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