CommunicationObject.OnBeginOpen Method
Inserts processing on a communication object after it transitions to the opening state due to the invocation of an asynchronous open operation.
Namespace: System.ServiceModel.Channels
Assembly: System.ServiceModel (in System.ServiceModel.dll)
protected abstract IAsyncResult OnBeginOpen( TimeSpan timeout, AsyncCallback callback, Object state )
Parameters
- timeout
- Type: System.TimeSpan
The Timespan that specifies how long the on open operation has to complete before timing out.
- callback
- Type: System.AsyncCallback
The AsyncCallback delegate that receives notification of the completion of the asynchronous on open operation.
- state
- Type: System.Object
An object, specified by the application, that contains state information associated with the asynchronous on open operation.
Return Value
Type: System.IAsyncResultThe IAsyncResult that references the asynchronous on open 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. |
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.
