CommunicationObject.OnBeginClose Method
Inserts processing after a communication object transitions to the closing state due to the invocation of an asynchronous close operation.
Namespace: System.ServiceModel.Channels
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 |
|---|---|
| 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 default interval of time that was allotted for the operation was exceeded before the operation was completed. |
The BeginClose method calls OnBeginClose if the communication object is initially in the Opened state.
To insert processing after a communication object transitions to a closing state due to the invocation of a synchronous Close operation, use the OnClose(TimeSpan)method.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
