/// <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;
if (m_session == null)
{
return;
}
// set a suitable initial state.
if (m_session != null && !m_connectedOnce)
{
m_connectedOnce = true;
EventsLV.IsSubscribed = false;
EventsLV.DisplayConditions = true;
EventsLV.ChangeArea(Opc.Ua.ObjectIds.Server, false);
FilterDeclaration filter = new FilterDeclaration();
ushort namespaceIndex = (ushort)m_session.NamespaceUris.GetIndex(DsatsDemo.Namespaces.DsatsDemo);
filter.EventTypeId = ExpandedNodeId.ToNodeId(DsatsDemo.ObjectTypeIds.LockConditionType, m_session.NamespaceUris);
filter.AddSimpleField(String.Empty, BuiltInType.NodeId, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.EventId, BuiltInType.ByteString, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.EventType, BuiltInType.NodeId, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.ConditionName, BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName[] {
new QualifiedName(DsatsDemo.BrowseNames.LockState, namespaceIndex),
new QualifiedName(Opc.Ua.BrowseNames.CurrentState) },
BuiltInType.String,
ValueRanks.Scalar,
true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.ClientUserId, namespaceIndex), BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.SubjectName, namespaceIndex), BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.SessionId, namespaceIndex), BuiltInType.NodeId, true);
EventsLV.ChangeFilter(filter, true);
m_filter = filter;
PhaseCB.Items.Clear();
BrowseDescription nodeToBrowse = new BrowseDescription();
nodeToBrowse.NodeId = new NodeId(DsatsDemo.Objects.Rig_Phases, namespaceIndex);
nodeToBrowse.ReferenceTypeId = Opc.Ua.ReferenceTypeIds.HierarchicalReferences;
nodeToBrowse.IncludeSubtypes = true;
nodeToBrowse.BrowseDirection = BrowseDirection.Forward;
nodeToBrowse.ResultMask = (uint)BrowseResultMask.All;
DataValue value = m_session.ReadValue(new NodeId(DsatsDemo.Variables.Rig_CurrentPhase, namespaceIndex));
NodeId currentPhase = value.GetValue<NodeId>(null);
ReferenceDescriptionCollection references = ClientUtils.Browse(m_session, nodeToBrowse, false);
if (references != null)
{
for (int ii = 0; ii < references.Count; ii++)
{
PhaseCB.Items.Add(references[ii]);
if (currentPhase == references[ii].NodeId)
{
PhaseCB.SelectedIndex = ii;
}
}
}
m_connectedOnce = true;
}
EventsLV.IsSubscribed = true;
EventsLV.ChangeSession(m_session, true);
EventsLV.ConditionRefresh();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void EventTypeBTN_Click(object sender, EventArgs e)
{
try
{
if (m_session == null)
{
return;
}
TypeDeclaration type = new SelectTypeDlg().ShowDialog(m_session, Opc.Ua.ObjectTypeIds.BaseEventType, "Select Event Type");
if (type == null)
{
return;
}
m_filter = new FilterDeclaration(type, m_filter);
EventTypeTB.Text = m_session.NodeCache.GetDisplayText(m_filter.EventTypeId);
EventFilterTB.Text = GetFilterFields(m_filter);
ResultsLV.ChangeFilter(m_filter, false);
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Displays the available areas in a tree view.
/// </summary>
/// <param name="session">The session.</param>
/// <returns></returns>
public bool ShowDialog(FilterDeclaration filter)
{
m_filter = filter;
Populate();
// display the dialog.
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
// update filter.
List <FilterDeclarationField> fields = new List <FilterDeclarationField>();
for (int ii = 0; ii < EventFieldsLV.Items.Count; ii++)
{
ListViewItem item = EventFieldsLV.Items[ii];
FilterItem field = item.Tag as FilterItem;
if (field != null)
{
field.Declaration.DisplayInList = field.DisplayInList;
field.Declaration.FilterEnabled = field.FilterEnabled;
field.Declaration.FilterOperator = field.FilterOperator;
field.Declaration.FilterValue = field.FilterValue;
fields.Add(field.Declaration);
}
}
filter.Fields = fields;
// return the result.
return(true);
}
/// <summary>
/// Changes the filter used to select the events.
/// </summary>
public void ChangeFilter(FilterDeclaration filter, bool fetchRecent)
{
m_filter = filter;
EventsLV.Items.Clear();
int index = 0;
// add or update existing columns.
for (int ii = 0; ii < m_filter.Fields.Count; ii++)
{
if (m_filter.Fields[ii].DisplayInList)
{
if (index >= EventsLV.Columns.Count)
{
EventsLV.Columns.Add(new ColumnHeader());
}
EventsLV.Columns[index].Text = m_filter.Fields[ii].InstanceDeclaration.DisplayName;
EventsLV.Columns[index].TextAlign = HorizontalAlignment.Left;
index++;
}
}
// remove extra columns.
while (index < EventsLV.Columns.Count)
{
EventsLV.Columns.RemoveAt(EventsLV.Columns.Count - 1);
}
// adjust the width of the columns.
for (int ii = 0; ii < EventsLV.Columns.Count; ii++)
{
EventsLV.Columns[ii].Width = -2;
}
// fetch recent history.
if (fetchRecent)
{
ReadRecentHistory();
}
// update subscription.
if (m_subscription != null)
{
m_monitoredItem.Filter = m_filter.GetFilter();
m_subscription.ApplyChanges();
}
}
/// <summary>
/// Displays the dialog.
/// </summary>
public bool ShowDialog(Session session, NodeId areaId, FilterDeclaration filter)
{
m_session = session;
m_areaId = areaId;
m_filter = filter;
EventAreaTB.Text = session.NodeCache.GetDisplayText(m_areaId);
EventTypeTB.Text = session.NodeCache.GetDisplayText(filter.EventTypeId);
EventFilterTB.Text = GetFilterFields(m_filter);
ResultsLV.IsSubscribed = false;
ResultsLV.ChangeSession(session, false);
ResultsLV.ChangeArea(areaId, false);
ResultsLV.ChangeFilter(filter, false);
// get the beginning of data.
DateTime startTime;
try
{
startTime = ReadFirstDate().ToLocalTime();
}
catch (Exception)
{
startTime = new DateTime(2000, 1, 1);
}
StartTimeDP.Value = startTime;
StartTimeCK.Checked = true;
EndTimeDP.Value = DateTime.Now;
EndTimeCK.Checked = true;
MaxReturnValuesNP.Value = 10;
MaxReturnValuesCK.Checked = true;
GoBTN.Visible = true;
NextBTN.Visible = false;
StopBTN.Enabled = false;
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
return(true);
}
/// <summary>
/// Displays the dialog.
/// </summary>
public bool ShowDialog(Session session, NodeId areaId, FilterDeclaration filter)
{
m_session = session;
m_areaId = areaId;
m_filter = filter;
EventAreaTB.Text = session.NodeCache.GetDisplayText(m_areaId);
EventTypeTB.Text = session.NodeCache.GetDisplayText(filter.EventTypeId);
EventFilterTB.Text = GetFilterFields(m_filter);
ResultsLV.IsSubscribed = false;
ResultsLV.ChangeSession(session, false);
ResultsLV.ChangeArea(areaId, false);
ResultsLV.ChangeFilter(filter, false);
// get the beginning of data.
DateTime startTime;
try
{
startTime = ReadFirstDate().ToLocalTime();
}
catch (Exception)
{
startTime = new DateTime(2000, 1, 1);
}
StartTimeDP.Value = startTime;
StartTimeCK.Checked = true;
EndTimeDP.Value = DateTime.Now;
EndTimeCK.Checked = true;
MaxReturnValuesNP.Value = 10;
MaxReturnValuesCK.Checked = true;
GoBTN.Visible = true;
NextBTN.Visible = false;
StopBTN.Enabled = false;
if (ShowDialog() != DialogResult.OK)
{
return false;
}
return true;
}
/// <summary>
/// Returns the filter fields formatted as a string.
/// </summary>
private string GetFilterFields(FilterDeclaration filter)
{
StringBuilder buffer = new StringBuilder();
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.FilterEnabled)
{
if (buffer.Length > 0)
{
buffer.Append(", ");
}
buffer.Append(field.InstanceDeclaration.DisplayName);
}
}
return(buffer.ToString());
}
/// <summary>
/// Shows all fields for the current condition.
/// </summary>
public bool ShowDialog(FilterDeclaration filter, VariantCollection fields)
{
// fill in dialog.
for (int ii = 0; ii < filter.Fields.Count; ii++)
{
InstanceDeclaration instance = filter.Fields[ii].InstanceDeclaration;
ListViewItem item = new ListViewItem(instance.DisplayPath);
item.SubItems.Add(instance.DataTypeDisplayText);
string text = null;
// check for missing fields.
if (fields.Count <= ii || fields[ii].Value == null)
{
text = String.Empty;
}
// use default string format.
else
{
text = fields[ii].ToString();
}
item.SubItems.Add(text);
item.Tag = filter.Fields[ii];
FieldsLV.Items.Add(item);
}
// adjust columns.
for (int ii = 0; ii < FieldsLV.Columns.Count; ii++)
{
FieldsLV.Columns[ii].Width = -2;
}
// display the dialog.
if (ShowDialog() != DialogResult.OK)
{
return false;
}
return true;
}
/// <summary>
/// Shows all fields for the current condition.
/// </summary>
public bool ShowDialog(FilterDeclaration filter, VariantCollection fields)
{
// fill in dialog.
for (int ii = 0; ii < filter.Fields.Count; ii++)
{
InstanceDeclaration instance = filter.Fields[ii].InstanceDeclaration;
ListViewItem item = new ListViewItem(instance.DisplayPath);
item.SubItems.Add(instance.DataTypeDisplayText);
string text = null;
// check for missing fields.
if (fields.Count <= ii || fields[ii].Value == null)
{
text = String.Empty;
}
// use default string format.
else
{
text = fields[ii].ToString();
}
item.SubItems.Add(text);
item.Tag = filter.Fields[ii];
FieldsLV.Items.Add(item);
}
// adjust columns.
for (int ii = 0; ii < FieldsLV.Columns.Count; ii++)
{
FieldsLV.Columns[ii].Width = -2;
}
// display the dialog.
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
return(true);
}
/// <summary>
/// Sets the filter to edit.
/// </summary>
public void SetFilter(FilterDeclaration filter)
{
m_filter = filter;
m_dataset = new DataSet();
m_dataset.Tables.Add("Events");
m_dataset.Tables[0].Columns.Add("Event", typeof(VariantCollection));
if (m_filter != null)
{
foreach (FilterDeclarationField field in m_filter.Fields)
{
if (field.DisplayInList)
{
m_dataset.Tables[0].Columns.Add(field.InstanceDeclaration.DisplayName, typeof(string));
}
}
}
EventsDV.DataSource = m_dataset.Tables[0];
}
private void EventTypeBTN_Click(object sender, EventArgs e)
{
try
{
if (m_session == null)
{
return;
}
TypeDeclaration type = new SelectTypeDlg().ShowDialog(m_session, Opc.Ua.ObjectTypeIds.BaseEventType, "Select Event Type");
if (type == null)
{
return;
}
m_filter = new FilterDeclaration(type, m_filter);
EventTypeTB.Text = m_session.NodeCache.GetDisplayText(m_filter.EventTypeId);
EventFilterTB.Text = GetFilterFields(m_filter);
ResultsLV.ChangeFilter(m_filter, false);
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Creates list item for an event.
/// </summary>
private ListViewItem CreateListItem(FilterDeclaration filter, VariantCollection fieldValues)
{
ListViewItem item = new ListViewItem();
item.Tag = fieldValues;
for (int ii = 1; ii < fieldValues.Count; ii++)
{
if (!filter.Fields[ii - 1].DisplayInList)
{
continue;
}
string text = null;
// check for missing fields.
if (fieldValues[ii].Value == null)
{
text = String.Empty;
}
// display the name of a node instead of the node id.
else if (fieldValues[ii].TypeInfo.BuiltInType == BuiltInType.NodeId)
{
INode node = m_session.NodeCache.Find((NodeId)fieldValues[ii].Value);
if (node != null)
{
text = node.ToString();
}
}
// display local time for any time fields.
else if (fieldValues[ii].TypeInfo.BuiltInType == BuiltInType.DateTime)
{
DateTime value = (DateTime)fieldValues[ii].Value;
if (m_filter.Fields[ii - 1].InstanceDeclaration.DisplayName.Contains("Time"))
{
text = value.ToLocalTime().ToString("HH:mm:ss.fff");
}
else
{
text = value.ToLocalTime().ToString("yyyy-MM-dd");
}
}
// use default string format.
else
{
text = fieldValues[ii].ToString();
}
// update subitem text.
if (item.Text == String.Empty)
{
item.Text = text;
item.SubItems[0].Text = text;
}
else
{
item.SubItems.Add(text);
}
}
return(item);
}
/// <summary>
/// Sets the filter to edit.
/// </summary>
public void SetFilter(FilterDeclaration filter)
{
m_dataset.Tables[0].Rows.Clear();
if (filter != null)
{
foreach (FilterDeclarationField field in filter.Fields)
{
DataRow row = m_dataset.Tables[0].NewRow();
UpdateRow(row, field);
m_dataset.Tables[0].Rows.Add(row);
}
}
}
/// <summary>
/// Returns the filter fields formatted as a string.
/// </summary>
private string GetFilterFields(FilterDeclaration filter)
{
StringBuilder buffer = new StringBuilder();
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.FilterEnabled)
{
if (buffer.Length > 0)
{
buffer.Append(", ");
}
buffer.Append(field.InstanceDeclaration.DisplayName);
}
}
return buffer.ToString();
}
/// <summary>
/// Displays the available areas in a tree view.
/// </summary>
/// <param name="session">The session.</param>
/// <returns></returns>
public bool ShowDialog(FilterDeclaration filter)
{
m_filter = filter;
Populate();
// display the dialog.
if (ShowDialog() != DialogResult.OK)
{
return false;
}
// update filter.
List<FilterDeclarationField> fields = new List<FilterDeclarationField>();
for (int ii = 0; ii < EventFieldsLV.Items.Count; ii++)
{
ListViewItem item = EventFieldsLV.Items[ii];
FilterItem field = item.Tag as FilterItem;
if (field != null)
{
field.Declaration.DisplayInList = field.DisplayInList;
field.Declaration.FilterEnabled = field.FilterEnabled;
field.Declaration.FilterOperator = field.FilterOperator;
field.Declaration.FilterValue = field.FilterValue;
fields.Add(field.Declaration);
}
}
filter.Fields = fields;
// return the result.
return true;
}
/// <summary>
/// Changes the filter used to select the events.
/// </summary>
public void ChangeFilter(FilterDeclaration filter, bool fetchRecent)
{
m_filter = filter;
EventsLV.Items.Clear();
int index = 0;
// add or update existing columns.
for (int ii = 0; ii < m_filter.Fields.Count; ii++)
{
if (m_filter.Fields[ii].DisplayInList)
{
if (index >= EventsLV.Columns.Count)
{
EventsLV.Columns.Add(new ColumnHeader());
}
EventsLV.Columns[index].Text = m_filter.Fields[ii].InstanceDeclaration.DisplayName;
EventsLV.Columns[index].TextAlign = HorizontalAlignment.Left;
index++;
}
}
// remove extra columns.
while (index < EventsLV.Columns.Count)
{
EventsLV.Columns.RemoveAt(EventsLV.Columns.Count - 1);
}
// adjust the width of the columns.
for (int ii = 0; ii < EventsLV.Columns.Count; ii++)
{
EventsLV.Columns[ii].Width = -2;
}
// fetch recent history.
if (fetchRecent)
{
ReadRecentHistory();
}
// update subscription.
if (m_subscription != null)
{
m_monitoredItem.Filter = m_filter.GetFilter();
m_subscription.ApplyChanges();
}
}
/// <summary>
/// Creates list item for an event.
/// </summary>
private ListViewItem CreateListItem(FilterDeclaration filter, VariantCollection fieldValues)
{
ListViewItem item = new ListViewItem();
item.Tag = fieldValues;
for (int ii = 1; ii < fieldValues.Count; ii++)
{
if (!filter.Fields[ii-1].DisplayInList)
{
continue;
}
string text = null;
// check for missing fields.
if (fieldValues[ii].Value == null)
{
text = String.Empty;
}
// display the name of a node instead of the node id.
else if (fieldValues[ii].TypeInfo.BuiltInType == BuiltInType.NodeId)
{
INode node = m_session.NodeCache.Find((NodeId)fieldValues[ii].Value);
if (node != null)
{
text = node.ToString();
}
}
// display local time for any time fields.
else if (fieldValues[ii].TypeInfo.BuiltInType == BuiltInType.DateTime)
{
DateTime value = (DateTime)fieldValues[ii].Value;
if (m_filter.Fields[ii-1].InstanceDeclaration.DisplayName.Contains("Time"))
{
text = value.ToLocalTime().ToString("HH:mm:ss.fff");
}
else
{
text = value.ToLocalTime().ToString("yyyy-MM-dd");
}
}
// use default string format.
else
{
text = fieldValues[ii].ToString();
}
// update subitem text.
if (item.Text == String.Empty)
{
item.Text = text;
item.SubItems[0].Text = text;
}
else
{
item.SubItems.Add(text);
}
}
return item;
}
/// <summary>
/// Updates the filter from the controls.
/// </summary>
private void UpdateFilter()
{
// get selected declarations.
List<InstanceDeclaration> declarations = new List<InstanceDeclaration>();
NodeId eventTypeId = CollectInstanceDeclarations(declarations);
if (m_filter == null)
{
m_filter = new FilterDeclaration();
}
if (m_filter.Fields == null || m_filter.Fields.Count == 0)
{
m_filter.Fields = new List<FilterDeclarationField>();
// select some default values to display in the list.
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.EventType, true);
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.SourceName, true);
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.SourceNode, true);
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.Time, true);
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.Severity, true);
AddDefaultFilter(m_filter.Fields, Opc.Ua.BrowseNames.Message, true);
}
// copy settings from existing filter.
List<FilterDeclarationField> fields = new List<FilterDeclarationField>();
foreach (InstanceDeclaration declaration in declarations)
{
if (declaration.NodeClass != NodeClass.Variable)
{
continue;
}
FilterDeclarationField field = new FilterDeclarationField(declaration);
foreach (FilterDeclarationField field2 in m_filter.Fields)
{
if (field2.InstanceDeclaration.BrowsePathDisplayText == field.InstanceDeclaration.BrowsePathDisplayText)
{
field.DisplayInList = field2.DisplayInList;
field.FilterEnabled = field2.FilterEnabled;
field.FilterOperator = field2.FilterOperator;
field.FilterValue = field2.FilterValue;
break;
}
}
fields.Add(field);
}
// update filter.
m_filter.EventTypeId = eventTypeId;
m_filter.Fields = fields;
}
/// <summary>
/// Deletes the recent history.
/// </summary>
private void DeleteHistory(NodeId areaId, List<VariantCollection> events, FilterDeclaration filter)
{
// find the event id.
int index = 0;
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.InstanceDeclaration.BrowseName == Opc.Ua.BrowseNames.EventId)
{
break;
}
index++;
}
// can't delete events if no event id.
if (index >= filter.Fields.Count)
{
throw ServiceResultException.Create(StatusCodes.BadEventIdUnknown, "Cannot delete events if EventId was not selected.");
}
// build list of nodes to delete.
DeleteEventDetails details = new DeleteEventDetails();
details.NodeId = areaId;
foreach (VariantCollection e in events)
{
byte[] eventId = null;
if (e.Count > index)
{
eventId = e[index].Value as byte[];
}
details.EventIds.Add(eventId);
}
// delete the events.
ExtensionObjectCollection nodesToUpdate = new ExtensionObjectCollection();
nodesToUpdate.Add(new ExtensionObject(details));
HistoryUpdateResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryUpdate(
null,
nodesToUpdate,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToUpdate);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToUpdate);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// check for item level errors.
if (results[0].OperationResults.Count > 0)
{
int count = 0;
for (int ii = 0; ii < results[0].OperationResults.Count; ii++)
{
if (StatusCode.IsBad(results[0].OperationResults[ii]))
{
count++;
}
}
// raise an error.
if (count > 0)
{
throw ServiceResultException.Create(
StatusCodes.BadEventIdUnknown,
"Error deleting events. Only {0} of {1} deletes succeeded.",
events.Count - count,
events.Count);
}
}
}
/// <summary>
/// Displays the current filter components in the control.
/// </summary>
public void ShowFilter(FilterDeclaration filter)
{
m_declarations = new List<InstanceDeclaration>();
foreach (FilterDeclarationField declaration in filter.Fields)
{
DataRow row = m_dataset.Tables[0].NewRow();
UpdateRow(row, declaration.InstanceDeclaration);
m_dataset.Tables[0].Rows.Add(row);
m_declarations.Add(declaration.InstanceDeclaration);
}
}
/// <summary>
/// Deletes the recent history.
/// </summary>
private void DeleteHistory(NodeId areaId, List <VariantCollection> events, FilterDeclaration filter)
{
// find the event id.
int index = 0;
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.InstanceDeclaration.BrowseName == Opc.Ua.BrowseNames.EventId)
{
break;
}
index++;
}
// can't delete events if no event id.
if (index >= filter.Fields.Count)
{
throw ServiceResultException.Create(StatusCodes.BadEventIdUnknown, "Cannot delete events if EventId was not selected.");
}
// build list of nodes to delete.
DeleteEventDetails details = new DeleteEventDetails();
details.NodeId = areaId;
foreach (VariantCollection e in events)
{
byte[] eventId = null;
if (e.Count > index)
{
eventId = e[index].Value as byte[];
}
details.EventIds.Add(eventId);
}
// delete the events.
ExtensionObjectCollection nodesToUpdate = new ExtensionObjectCollection();
nodesToUpdate.Add(new ExtensionObject(details));
HistoryUpdateResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryUpdate(
null,
nodesToUpdate,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToUpdate);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToUpdate);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// check for item level errors.
if (results[0].OperationResults.Count > 0)
{
int count = 0;
for (int ii = 0; ii < results[0].OperationResults.Count; ii++)
{
if (StatusCode.IsBad(results[0].OperationResults[ii]))
{
count++;
}
}
// raise an error.
if (count > 0)
{
throw ServiceResultException.Create(
StatusCodes.BadEventIdUnknown,
"Error deleting events. Only {0} of {1} deletes succeeded.",
events.Count - count,
events.Count);
}
}
}
/// <summary>
/// Creates list item for an event.
/// </summary>
private ListViewItem CreateListItem(FilterDeclaration filter, VariantCollection fieldValues)
{
ListViewItem item = null;
if (m_displayConditions)
{
NodeId conditionId = fieldValues[0].Value as NodeId;
if (conditionId != null)
{
for (int ii = 0; ii < EventsLV.Items.Count; ii++)
{
VariantCollection fields = EventsLV.Items[ii].Tag as VariantCollection;
if (fields != null && Utils.IsEqual(conditionId, fields[0].Value))
{
item = EventsLV.Items[ii];
break;
}
}
}
}
if (item == null)
{
item = new ListViewItem();
}
item.Tag = fieldValues;
int position = -1;
for (int ii = 1; ii < filter.Fields.Count; ii++)
{
if (!filter.Fields[ii].DisplayInList)
{
continue;
}
position++;
string text = null;
Variant value = fieldValues[ii + 1];
// check for missing fields.
if (value.Value == null)
{
text = String.Empty;
}
// display the name of a node instead of the node id.
else if (value.TypeInfo.BuiltInType == BuiltInType.NodeId)
{
INode node = m_session.NodeCache.Find((NodeId)value.Value);
if (node != null)
{
text = node.ToString();
}
}
// display local time for any time fields.
else if (value.TypeInfo.BuiltInType == BuiltInType.DateTime)
{
DateTime datetime = (DateTime)value.Value;
if (m_filter.Fields[ii].InstanceDeclaration.DisplayName.Contains("Time"))
{
text = datetime.ToLocalTime().ToString("HH:mm:ss.fff");
}
else
{
text = datetime.ToLocalTime().ToString("yyyy-MM-dd");
}
}
// use default string format.
else
{
text = value.ToString();
}
// update subitem text.
if (item.Text == String.Empty)
{
item.Text = text;
item.SubItems[0].Text = text;
}
else
{
if (item.SubItems.Count <= position)
{
item.SubItems.Add(text);
}
else
{
item.SubItems[position].Text = text;
}
}
}
return item;
}
/// <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;
if (m_session == null)
{
return;
}
// set a suitable initial state.
if (m_session != null && !m_connectedOnce)
{
m_connectedOnce = true;
EventsLV.IsSubscribed = false;
EventsLV.DisplayConditions = true;
EventsLV.ChangeArea(Opc.Ua.ObjectIds.Server, false);
FilterDeclaration filter = new FilterDeclaration();
ushort namespaceIndex = (ushort)m_session.NamespaceUris.GetIndex(DsatsDemo.Namespaces.DsatsDemo);
filter.EventTypeId = ExpandedNodeId.ToNodeId(DsatsDemo.ObjectTypeIds.LockConditionType, m_session.NamespaceUris);
filter.AddSimpleField(String.Empty, BuiltInType.NodeId, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.EventId, BuiltInType.ByteString, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.EventType, BuiltInType.NodeId, false);
filter.AddSimpleField(Opc.Ua.BrowseNames.ConditionName, BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName[] {
new QualifiedName(DsatsDemo.BrowseNames.LockState, namespaceIndex),
new QualifiedName(Opc.Ua.BrowseNames.CurrentState)
},
BuiltInType.String,
ValueRanks.Scalar,
true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.ClientUserId, namespaceIndex), BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.SubjectName, namespaceIndex), BuiltInType.String, true);
filter.AddSimpleField(new QualifiedName(DsatsDemo.BrowseNames.SessionId, namespaceIndex), BuiltInType.NodeId, true);
EventsLV.ChangeFilter(filter, true);
m_filter = filter;
PhaseCB.Items.Clear();
BrowseDescription nodeToBrowse = new BrowseDescription();
nodeToBrowse.NodeId = new NodeId(DsatsDemo.Objects.Rig_Phases, namespaceIndex);
nodeToBrowse.ReferenceTypeId = Opc.Ua.ReferenceTypeIds.HierarchicalReferences;
nodeToBrowse.IncludeSubtypes = true;
nodeToBrowse.BrowseDirection = BrowseDirection.Forward;
nodeToBrowse.ResultMask = (uint)BrowseResultMask.All;
DataValue value = m_session.ReadValue(new NodeId(DsatsDemo.Variables.Rig_CurrentPhase, namespaceIndex));
NodeId currentPhase = value.GetValue <NodeId>(null);
ReferenceDescriptionCollection references = ClientUtils.Browse(m_session, nodeToBrowse, false);
if (references != null)
{
for (int ii = 0; ii < references.Count; ii++)
{
PhaseCB.Items.Add(references[ii]);
if (currentPhase == references[ii].NodeId)
{
PhaseCB.SelectedIndex = ii;
}
}
}
m_connectedOnce = true;
}
EventsLV.IsSubscribed = true;
EventsLV.ChangeSession(m_session, true);
EventsLV.ConditionRefresh();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
