ICommunicationObject.BeginClose Method (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.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
'Declaration Function BeginClose ( _ callback As AsyncCallback, _ state As Object _ ) As IAsyncResult
Parameters
- callback
- Type: System.AsyncCallback
The AsyncCallback delegate that receives notification of the completion of the asynchronous close operation.
- state
- Type: System.Object
An object, specified by the application, that contains state information associated with the asynchronous close operation.
Return Value
Type: System.IAsyncResultThe IAsyncResult that references the asynchronous close operation.
| Exception | Condition |
|---|---|
| CommunicationObjectFaultedException | BeginClose was called on an object in the Faulted state. |
| TimeoutException | The default time-out elapsed before the ICommunicationObject was able to close gracefully. |
This method causes an ICommunicationObject to gracefully transition from any state, other than the Opened state to the Closed state. The BeginClose method allows any unfinished work to be completed before returning. (For example, finish sending any buffered messages.)