TaskFactory.FromAsync<TArg1> Method (Func<TArg1, AsyncCallback, Object, IAsyncResult>, Action<IAsyncResult>, TArg1, Object)
[ 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
)
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.
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. |
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