CommunicationObject.BeginOpen Method (TimeSpan, AsyncCallback, Object)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Begins an asynchronous operation to close a communication object within a specified interval of time.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Parameters
- timeout
- Type: System.TimeSpan
The TimeSpan that specifies how long the send operation has to complete before timing out.
- callback
- Type: System.AsyncCallback
The AsyncCallback delegate that receives notification of the completion of the asynchronous open operation.
- state
- Type: System.Object
An object, specified by the application, that contains state information associated with the asynchronous open operation.
Return Value
Type: System.IAsyncResultThe IAsyncResult that references the asynchronous open operation.
Implements
ICommunicationObject.BeginOpen(TimeSpan, AsyncCallback, Object)| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | timeout is less than zero. |
| InvalidOperationException | The communication object is not in a Opened or Opening state and cannot be modified. |
| ObjectDisposedException | The communication object is in a Closing or Closed state and cannot be modified. |
| CommunicationObjectFaultedException | The communication object is in a Faulted state and cannot be modified. |
| TimeoutException | The interval of time specified by timeout that was allotted for the operation was exceeded before the operation was completed. |
The BeginOpen(TimeSpan, AsyncCallback, Object) method calls OnOpening and OnBeginOpen(TimeSpan, AsyncCallback, Object) if the communication object is initially in the Created state.
To insert processing after a communication object transitions to a closing state due to the invocation of a synchronous Open operation, use the Open method.