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TaskFactory<TResult>.FromAsync Method (IAsyncResult, Func<IAsyncResult, TResult>)

Creates a Task<TResult> that executes an end method function when a specified IAsyncResult completes.

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

public Task<TResult> FromAsync(
	IAsyncResult asyncResult,
	Func<IAsyncResult, TResult> endMethod
)

Parameters

asyncResult
Type: System.IAsyncResult
The IAsyncResult whose completion should trigger the processing of the endMethod.
endMethod
Type: System.Func<IAsyncResult, TResult>
The function delegate that processes the completed asyncResult.

Return Value

Type: System.Threading.Tasks.Task<TResult>
A Task<TResult> 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.

Silverlight

Supported in: 5

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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