/// <summary>
///
/// </summary>
/// <param name="monitoredItem"></param>
/// <param name="e"></param>
protected virtual void ItemNotificationHandler(MonitoredItem monitoredItem, MonitoredItemNotificationEventArgs e)
{
try
{
if (monitoredItem != null)
{
Opc.Ua.MonitoredItemNotification change = e.NotificationValue as Opc.Ua.MonitoredItemNotification;
if (change != null)
{
DataValue dv = change.Value;
if (dv != null)
{
ListViewItem[] lvis = ItemsLV.Items.Find(monitoredItem.ClientHandle.ToString(), false);
if (lvis.Length > 0)
{
DiagnosticListViewItem dlvi = lvis[0].Tag as DiagnosticListViewItem;
dlvi.UpdateInListView(lvis[0], dv, m_Session);
}
}
else
{
Utils.Trace("dv is null: {0}", MethodBase.GetCurrentMethod());
}
}
else
{
EventFieldList eventFields = e.NotificationValue as EventFieldList;
if (eventFields != null)
{
// get the event fields.
NodeId eventType = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.EventType) as NodeId;
string sourceName = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceName) as string;
DateTime? time = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Time) as DateTime?;
ushort? severity = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Severity) as ushort?;
LocalizedText message = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Message) as LocalizedText;
NodeId sourceNode = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceNode) as NodeId;
if (eventType == new NodeId(ObjectTypes.AuditAddNodesEventType))
{
}
else
{
}
}
else
{
Utils.Trace("eventFields is null " + MethodBase.GetCurrentMethod());
}
}
}
}
catch (Exception exception)
{
GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
}
}
/// <summary>
/// Enables the state of menu items.
/// </summary>
protected override void EnableMenuItems(ListViewItem clickedItem)
{
DiagnosticListViewItem dlvi = clickedItem.Tag as DiagnosticListViewItem;
bool hasDetails = false;
if (dlvi != null)
{
hasDetails = dlvi.HasDetails();
}
detailsToolStripMenuItem.Enabled = hasDetails;
}
private void DetailsToolStripMenuItem_Click(object sender, EventArgs e)
{
if (ItemsLV.SelectedItems.Count > 0)
{
DiagnosticListViewItem dlvi = ItemsLV.SelectedItems[0].Tag as DiagnosticListViewItem;
if (dlvi != null)
{
MonitoredItemDlg dlg = new MonitoredItemDlg();
m_Forms.Add(dlg);
dlg.Show(dlvi.MonitoredItem);
}
}
}
/// <summary>
///
/// </summary>
public void Close()
{
foreach (Form form in m_Forms)
{
form.Close();
}
m_Forms.Clear();
foreach (ListViewItem lvi in ItemsLV.Items)
{
DiagnosticListViewItem dlvi = lvi.Tag as DiagnosticListViewItem;
dlvi.MonitoredItem.Notification -= m_ItemNotification;
m_Subscription.RemoveItem(dlvi.MonitoredItem);
}
m_Session.RemoveSubscription(m_Subscription);
}
