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

 

Creates a task 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.

Exception Condition
ArgumentNullException

The asyncResult argument is null.

-or-

The endMethod argument is null.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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