TaskFactory.FromAsync<TArg1> Method (Func<TArg1, AsyncCallback, Object, IAsyncResult>, Action<IAsyncResult>, TArg1, Object, TaskCreationOptions)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
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 FromAsync<TArg1>(
Func<TArg1, AsyncCallback, Object, IAsyncResult> beginMethod,
Action<IAsyncResult> endMethod,
TArg1 arg1,
Object state,
TaskCreationOptions creationOptions
)
Type Parameters
- TArg1
The type of the first argument passed to the beginMethod delegate.
Parameters
- beginMethod
- Type: System.Func<TArg1, AsyncCallback, Object, IAsyncResult>
The delegate that begins the asynchronous operation.
- endMethod
- Type: System.Action<IAsyncResult>
The delegate that ends the asynchronous operation.
- arg1
- Type: TArg1
The first argument passed to the beginMethod delegate.
- state
- Type: System.Object
An object containing data to be used by the beginMethod delegate.
- creationOptions
- Type: System.Threading.Tasks.TaskCreationOptions
The TaskCreationOptions value that controls the behavior of the created Task.
Return Value
Type: System.Threading.Tasks.TaskThe created Task that represents the asynchronous operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | The exception that is thrown when the beginMethod argument is null. -or- The exception that is thrown when the endMethod argument is null. |
| ArgumentOutOfRangeException | The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value. The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value. For more information, see the Remarks for FromAsync |