TaskFactory(Of TResult).FromAsync Method (IAsyncResult, Func(Of IAsyncResult, TResult))

 
System_CAPS_noteNote

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Creates a task that executes an end method function when a specified IAsyncResult completes.

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

Public Function FromAsync (
	asyncResult As IAsyncResult,
	endMethod As Func(Of IAsyncResult, TResult)
) As Task(Of TResult)

Parameters

asyncResult
Type: System.IAsyncResult

The IAsyncResult whose completion should trigger the processing of the endMethod.

endMethod
Type: System.Func(Of IAsyncResult, TResult)

The function delegate that processes the completed asyncResult.

Return Value

Type: System.Threading.Tasks.Task(Of TResult)

A Task(Of 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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