CommunicationObject.OnBeginClose 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 after a communication object transitions to the closing state due to the invocation of an asynchronous close operation.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
protected abstract IAsyncResult OnBeginClose( TimeSpan timeout, AsyncCallback callback, Object state )
Parameters
- timeout
- Type: System.TimeSpan
The TimeSpan that specifies how long the on close operation has to complete before timing out.
- callback
- Type: System.AsyncCallback
The AsyncCallback delegate that receives notification of the completion of the asynchronous on close operation.
- state
- Type: System.Object
An object, specified by the application, that contains state information associated with the asynchronous on close operation.
Return Value
Type: System.IAsyncResultThe IAsyncResult that references the asynchronous on close operation.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | timeout is less than zero. |
The BeginClose method calls OnBeginClose if the communication object is initially in the Opened state.
When implemented in a derived class, inserts processing after a communication object transitions to a closing state due to the invocation of a synchronous Close operation, use the OnClose(TimeSpan)method.