| Name | Description | |
|---|---|---|
 | AsyncState | Gets a user-defined object that qualifies or contains information about an asynchronous operation. |
| AsyncWaitHandle | Gets a System.Threading.WaitHandle that is used to wait for an asynchronous operation to complete. |
| CancellationToken | The cancellation token associated with the operation. |
| CompletedSynchronously | Gets a value that indicates whether the asynchronous operation completed synchronously. |
| Exception | An exception that occured during processing. |
| InnerResult | An object used to synchronize access to the result object. |
| IsCompleted | Gets a value that indicates whether the asynchronous operation has completed. |
| Lock | An object used to synchronize access to the result object. |