TaskFactory.FromAsync Method (IAsyncResult, Action<IAsyncResult>)
Assembly: mscorlib (in mscorlib.dll)
- Type: System.IAsyncResult
The IAsyncResult whose completion should trigger the processing of the endMethod.
The exception that is thrown when the asyncResult argument is null.
The exception that is thrown when the endMethod argument is null.
The FromAsync overloads that take an asyncResult parameter are not as efficient as the overloads that take a beginMethod parameter. If performance is an issue, use the overloads that provide the beginMethod/endMethod pattern.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.