TaskFactory<TResult>.FromAsync<TArg1> Method (Func<TArg1, AsyncCallback, Object, IAsyncResult>, Func<IAsyncResult, TResult>, TArg1, Object)
Creates a task that represents a pair of begin and end methods that conform to the Asynchronous Programming Model pattern.
Assembly: mscorlib (in mscorlib.dll)
public Task<TResult> FromAsync<TArg1>( Func<TArg1, AsyncCallback, object, IAsyncResult> beginMethod, Func<IAsyncResult, TResult> endMethod, TArg1 arg1, object state )
System.Func< , AsyncCallback, Object, IAsyncResult>
The delegate that begins the asynchronous operation.
The delegate that ends the asynchronous operation.
The first argument passed to the beginMethod delegate.
An object containing data to be used by the beginMethod delegate.
Return ValueType: System.Threading.Tasks.Task<TResult>
The created task that represents the asynchronous operation.
The type of the first argument passed to the beginMethod delegate.
The beginMethod argument is null.
The endMethod argument is null.
This method throws any exceptions thrown by the beginMethod. Exceptions for endmethod are thrown when waiting on the returned task.
Available since 8
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Available since 8.1