TaskFactory.FromAsync Method (IAsyncResult, Action<IAsyncResult>, TaskCreationOptions)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Creates a Task that executes an end method action when a specified IAsyncResult completes.
Namespace: System.Threading.Tasks
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Function FromAsync ( _
asyncResult As IAsyncResult, _
endMethod As Action(Of IAsyncResult), _
creationOptions As TaskCreationOptions _
) As Task
public Task FromAsync(
IAsyncResult asyncResult,
Action<IAsyncResult> endMethod,
TaskCreationOptions creationOptions
)
Parameters
- asyncResult
Type: System.IAsyncResult
The IAsyncResult whose completion should trigger the processing of the endMethod.
- endMethod
Type: System.Action<IAsyncResult>
The action delegate that processes the completed asyncResult.
- creationOptions
Type: System.Threading.Tasks.TaskCreationOptions
The TaskCreationOptions value that controls the behavior of the created Task.
Return Value
Type: System.Threading.Tasks.Task
A Task that represents the asynchronous operation.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | The exception that is thrown when the asyncResult 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. For more information, see the Remarks for FromAsync |
Version Information
Silverlight
Supported in: 5
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also