/// <summary>
/// Cancels an existing request.
/// </summary>
public bool CancelRequest(Request request, TsCHdaCancelCompleteEventHandler callback)
{
lock (this)
{
// check if it is a valid request.
if (!m_requests.Contains(request.RequestID))
{
return(false);
}
// request will be removed when the cancel complete callback arrives.
if (callback != null)
{
request.CancelCompleteEvent += callback;
}
// no confirmation required - remove request immediately.
else
{
m_requests.Remove(request.RequestID);
}
// request will be cancelled.
return(true);
}
}
/// <summary>
/// Cancels an asynchronous request.
/// </summary>
/// <param name="request">The state object for the request to cancel.</param>
/// <param name="callback">A delegate used to receive notifications when the request completes.</param>
public void CancelRequest(IOpcRequest request, TsCHdaCancelCompleteEventHandler callback)
{
if (_server == null)
{
throw new NotConnectedException();
}
((ITsCHdaServer)_server).CancelRequest(request, callback);
}
