protected void AddToTable(XmlSchemaObjectTable table, XmlQualifiedName qname, XmlSchemaObject item) {
if (qname.Name.Length == 0) {
return;
}
XmlSchemaObject existingObject = (XmlSchemaObject)table[qname];
if (existingObject != null) {
if (existingObject == item) {
return;
}
string code = Res.Sch_DupGlobalElement;
if (item is XmlSchemaAttributeGroup) {
string ns = nameTable.Add(qname.Namespace);
if (Ref.Equal(ns, NsXml)) { //Check for xml namespace
XmlSchema schemaForXmlNS = Preprocessor.GetBuildInSchema();
XmlSchemaObject builtInAttributeGroup = schemaForXmlNS.AttributeGroups[qname];
if ((object)existingObject == (object)builtInAttributeGroup) {
table.Insert(qname, item);
return;
}
else if ((object)item == (object)builtInAttributeGroup) { //trying to overwrite customer's component with built-in, ignore built-in
return;
}
}
else if (IsValidAttributeGroupRedefine(existingObject, item)){ //check for redefines
table.Insert(qname, item);
return;
}
code = Res.Sch_DupAttributeGroup;
}
else if (item is XmlSchemaAttribute) {
string ns = nameTable.Add(qname.Namespace);
if (Ref.Equal(ns, NsXml)) {
XmlSchema schemaForXmlNS = Preprocessor.GetBuildInSchema();
XmlSchemaObject builtInAttribute = schemaForXmlNS.Attributes[qname];
if ((object)existingObject == (object)builtInAttribute) { //replace built-in one
table.Insert(qname, item);
return;
}
else if ((object)item == (object)builtInAttribute) { //trying to overwrite customer's component with built-in, ignore built-in
return;
}
}
code = Res.Sch_DupGlobalAttribute;
}
else if (item is XmlSchemaSimpleType) {
if (IsValidTypeRedefine(existingObject, item)) {
table.Insert(qname, item);
return;
}
code = Res.Sch_DupSimpleType;
}
else if (item is XmlSchemaComplexType) {
if (IsValidTypeRedefine(existingObject, item)) {
table.Insert(qname, item);
return;
}
code = Res.Sch_DupComplexType;
}
else if (item is XmlSchemaGroup) {
if (IsValidGroupRedefine(existingObject, item)){ //check for redefines
table.Insert(qname, item);
return;
}
code = Res.Sch_DupGroup;
}
else if (item is XmlSchemaNotation) {
code = Res.Sch_DupNotation;
}
else if (item is XmlSchemaIdentityConstraint) {
code = Res.Sch_DupIdentityConstraint;
}
else {
Debug.Assert(item is XmlSchemaElement);
}
SendValidationEvent(code, qname.ToString(), item);
}
else {
table.Add(qname, item);
}
}