CommunicationObject.OnOpen Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
When implemented in a derived class, inserts processing on a communication object after it transitions into the opening state which must complete 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 on open operation has to complete before timing out.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | timeout is less than zero. |
| TimeoutException | The interval of time specified by timeout that was allotted for the operation was exceeded before the operation was completed. |
The Open method calls OnOpen(TimeSpan) (after calling OnOpening and before calling OnOpened) if the communication object is initially in the Created state.
To insert processing as a communication object transitions to a opening state due to the invocation of an asynchronous OnBeginOpen(TimeSpan, AsyncCallback, Object) operation, use the OnOpening method.