/// <summary>
/// Called when the close button is clicked.
/// </summary>
private void DoneBTN_Click(object sender, System.EventArgs e)
{
try
{
m_areas = AreaSourcesListCTRL.GetAreas();
m_sources = AreaSourcesListCTRL.GetSources();
// don't activate until all the filters are applied.
bool active = m_state.Active;
bool update = m_subscription != null;
// create new subscription.
if (m_subscription == null)
{
m_state.Active = false;
m_state.ClientHandle = Guid.NewGuid().ToString();
m_subscription = (Ae.TsCAeSubscription)m_server.CreateSubscription(m_state);
}
// update existing subscription.
else
{
m_subscription.ModifyState(((int)TsCAeStateMask.All & ~(int)TsCAeStateMask.Active), m_state);
}
// select filters.
m_filters.Areas.Clear();
m_filters.Areas.AddRange(m_areas);
m_filters.Sources.Clear();
m_filters.Sources.AddRange(m_sources);
m_subscription.SetFilters(m_filters);
// select attributes.
IDictionaryEnumerator enumerator = m_attributes.GetEnumerator();
while (enumerator.MoveNext())
{
int categoryID = (int)enumerator.Key;
OpcClientSdk.Ae.TsCAeAttributeCollection attributeIDs = (OpcClientSdk.Ae.TsCAeAttributeCollection)enumerator.Value;
m_subscription.SelectReturnedAttributes(categoryID, attributeIDs.ToArray());
}
// activate the subscription.
if (active || update)
{
m_state.Active = active;
m_subscription.ModifyState((int)TsCAeStateMask.Active, m_state);
}
// close the dialog.
DialogResult = DialogResult.OK;
Close();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
}
/// <summary>
/// Establishes a subscription based on the template provided.
/// </summary>
private Ae.TsCAeSubscription EstablishSubscription(Ae.TsCAeSubscription template)
{
ITsCAeSubscription remoteServer = null;
try
{
// create remote object.
remoteServer = ((ITsCAeServer)_server).CreateSubscription(template.State);
if (remoteServer == null)
{
return(null);
}
// create wrapper.
Ae.TsCAeSubscription subscription = new Ae.TsCAeSubscription(this, remoteServer, template.State);
// set filters.
subscription.SetFilters(template.Filters);
// set attributes.
IDictionaryEnumerator enumerator = template.Attributes.GetEnumerator();
while (enumerator.MoveNext())
{
subscription.SelectReturnedAttributes(
(int)enumerator.Key,
((Ae.TsCAeSubscription.AttributeCollection)enumerator.Value).ToArray());
}
// return new subscription
return(subscription);
}
catch
{
if (remoteServer != null)
{
remoteServer.Dispose();
remoteServer = null;
}
}
// return null.
return(null);
}
