private bool SameIncidentLinkAttributeValue(IEnumSchematicInMemoryFeature enumInMemoryLinks, string attributeName, ISchematicRulesHelper ruleHelper)
{
ISchematicInMemoryFeature inMemoryFeature = null;
enumInMemoryLinks.Reset();
bool bFirstVariant = true;
object vPreviousValue = null;
object vCurrentValue = null;
inMemoryFeature = enumInMemoryLinks.Next();
while (inMemoryFeature != null)
{
// Do not take account the link if the link is not displayed
//
// Search for an attribute with the given name
//
ISchematicElementClass schematicElementClass;
schematicElementClass = inMemoryFeature.SchematicElementClass;
ISchematicAttributeContainer attributeContainer = (ISchematicAttributeContainer)schematicElementClass;
ISchematicAttribute schematicAttribute = null;
if (attributeContainer != null)
{
schematicAttribute = attributeContainer.GetSchematicAttribute(attributeName, true);
}
if (schematicAttribute != null)
{
ISchematicObject schematicObject = (ISchematicObject)inMemoryFeature;
vCurrentValue = schematicAttribute.GetValue(schematicObject);
}
else
{
// If schematic attribute not existing ==> find a field in the associated feature
IObject iObject = null;
ISchematicInMemoryFeaturePrimaryAssociation primaryAssociation = (ISchematicInMemoryFeaturePrimaryAssociation)inMemoryFeature;
if (primaryAssociation != null)
{
iObject = primaryAssociation.AssociatedObject;
}
IRow row = (IRow)iObject;
int fieldIndex = 0;
if (row != null)
{
IFields fields = row.Fields;
if (fields != null)
{
fieldIndex = fields.FindField(attributeName);
}
}
if (fieldIndex > 0)
{
vCurrentValue = row.get_Value(fieldIndex);
if (DBNull.Value.Equals(vCurrentValue))
{
return(false);
}
}
else
{
return(false);
}
}
if (bFirstVariant)
{
vPreviousValue = vCurrentValue;
bFirstVariant = false;
}
else
{
// Compare PreviousValue and CurrentValue
if (vPreviousValue.GetType() != vCurrentValue.GetType())
{
return(false);
}
if (DBNull.Value.Equals(vPreviousValue) || DBNull.Value.Equals(vCurrentValue))
{
return(false);
}
if (vPreviousValue.GetType().FullName is System.String)//Speciale Case for string.
{
string str1 = (string)vPreviousValue;
string str2 = (string)vCurrentValue;
if (string.Compare(str1, str2, true) != 0)
{
return(false);
}
}
else if (vPreviousValue != vCurrentValue)// == or != operator compare for Variant match the right type.
{
return(false);
}
}
inMemoryFeature = enumInMemoryLinks.Next();
}
return(true);
}
void OnBeforeRemoveFeature(ISchematicInMemoryFeature inMemoryFeature, ref bool canRemove)
{
if (State != ESRI.ArcGIS.Desktop.AddIns.ExtensionState.Enabled)
{
return;
}
ESRI.ArcGIS.Geodatabase.IDataset esriData = (ESRI.ArcGIS.Geodatabase.IDataset)inMemoryFeature.SchematicDiagram.SchematicDiagramClass.SchematicDataset;
// Remove only elements contained in a specific Schematic dataset
if (esriData.Name != SampleDatasetName)
{
return;
}
// Remove only elements contained in a specific type of diagram
if (inMemoryFeature.SchematicDiagram.SchematicDiagramClass.Name != DiagramClassName)
{
return;
}
canRemove = false;
// can't remove SubStation
if (inMemoryFeature.SchematicElementClass.Name == "InsidePlant_SubStation")
{
return;
}
ISchematicDiagramClass schemDiagramClass;
schemDiagramClass = (ISchematicDiagramClass)inMemoryFeature.SchematicDiagram.SchematicDiagramClass;
// For this specific diagram type, we retrieve the datasource
// and the tables where the elements are stored
ISchematicDataSource schemDataSource = schemDiagramClass.SchematicDataSource;
string tableName = "";
switch (inMemoryFeature.SchematicElementClass.SchematicElementType)
{
case esriSchematicElementType.esriSchematicNodeType:
tableName = TableNameNodes;
break;
case esriSchematicElementType.esriSchematicLinkType:
tableName = TableNameLinks;
break;
case esriSchematicElementType.esriSchematicDrawingType:
return;
break;
}
// Retrieve Feature Workspace
ESRI.ArcGIS.Geodatabase.IWorkspace esriWorkspace = (ESRI.ArcGIS.Geodatabase.IWorkspace)schemDataSource.Object;
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace esriFeatureWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)esriWorkspace;
// Get Attributes values
ISchematicAttributeContainer schemAttribCont = (ISchematicAttributeContainer)inMemoryFeature.SchematicElementClass;
ISchematicAttributeContainer schemFatherAttribCont = (ISchematicAttributeContainer)inMemoryFeature.SchematicElementClass.Parent;
if ((!(schemAttribCont.GetSchematicAttribute(AttributeNameObjectID, false) == null) ||
!(schemFatherAttribCont.GetSchematicAttribute(AttributeNameObjectID, false) == null)))
{
int indField = inMemoryFeature.Fields.FindFieldByAliasName(AttributeNameObjectID);
int OID = int.Parse(inMemoryFeature.get_Value(indField).ToString(), System.Globalization.NumberStyles.Integer);
//Get table and row
ESRI.ArcGIS.Geodatabase.ITable esriTable = esriFeatureWorkspace.OpenTable(tableName);
ESRI.ArcGIS.Geodatabase.IRow esriRow = esriTable.GetRow(OID);
// When the row is identified in the table, it is deleted and
// the CanRemove returns True so that the associated
// schematic element is graphically removed from the active diagram
if (!(esriRow == null))
{
esriRow.Delete();
canRemove = true;
}
}
}
