|
public ConstructSelectClauses ( |
||
| session | The session. | |
| return | SimpleAttributeOperandCollection | |
/// <summary>
/// Initializes a new instance of the <see cref="AuditEventForm"/> class.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="subscription">The subscription.</param>
public AuditEventForm(Session session, Subscription subscription)
{
InitializeComponent();
m_session = session;
m_subscription = subscription;
// a table used to track event types.
m_eventTypeMappings = new Dictionary <NodeId, NodeId>();
// the filter to use.
m_filter = new FilterDefinition();
m_filter.AreaId = ObjectIds.Server;
m_filter.Severity = EventSeverity.Min;
m_filter.IgnoreSuppressedOrShelved = true;
m_filter.EventTypes = new NodeId[] { ObjectTypeIds.AuditUpdateMethodEventType };
// find the fields of interest.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(m_session, ObjectTypeIds.AuditUpdateMethodEventType);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>
/// Initializes a new instance of the <see cref="AuditEventForm"/> class.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="subscription">The subscription.</param>
public AuditEventForm(Session session, Subscription subscription)
{
InitializeComponent();
m_session = session;
m_subscription = subscription;
// a table used to track event types.
m_eventTypeMappings = new Dictionary<NodeId, NodeId>();
// the filter to use.
m_filter = new FilterDefinition();
m_filter.AreaId = ObjectIds.Server;
m_filter.Severity = EventSeverity.Min;
m_filter.IgnoreSuppressedOrShelved = true;
m_filter.EventTypes = new NodeId[] { ObjectTypeIds.AuditUpdateMethodEventType };
// find the fields of interest.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(m_session, ObjectTypeIds.AuditUpdateMethodEventType);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>
/// Updates the application after connecting to or disconnecting from the server.
/// </summary>
private void Server_ConnectComplete(object sender, EventArgs e)
{
try
{
m_session = ConnectServerCTRL.Session;
// check for disconnect.
if (m_session == null)
{
if (m_auditEventForm != null)
{
m_auditEventForm.Close();
m_auditEventForm = null;
}
return;
}
// set a suitable initial state.
if (m_session != null && !m_connectedOnce)
{
m_connectedOnce = true;
}
// create the default subscription.
m_subscription = new Subscription();
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
// must specify the fields that the form is interested in.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(
m_session,
NodeId.Parse("ns=2;s=4:2"),
NodeId.Parse("ns=2;s=4:1"),
ObjectTypeIds.DialogConditionType,
ObjectTypeIds.ExclusiveLimitAlarmType,
ObjectTypeIds.NonExclusiveLimitAlarmType);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
// send an initial refresh.
Conditions_RefreshMI_Click(sender, e);
ConditionsMI.Enabled = true;
ViewMI.Enabled = true;
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}