internal void CheckDuplicateElement(XmlSchemaElement element, string elementNs)
{
if (element == null)
{
return;
}
// only check duplicate definitions for top-level element
if (element.Parent == null || !(element.Parent is XmlSchema))
{
return;
}
XmlSchemaObjectTable elements = null;
if (Schema != null && Schema.TargetNamespace == elementNs)
{
#if !XMLSERIALIZERGENERATOR
XmlSchemas.Preprocess(Schema);
elements = Schema.Elements;
#endif
}
else if (Schemas != null)
{
elements = Schemas.GlobalElements;
}
else
{
return;
}
foreach (XmlSchemaElement e in elements.Values)
{
if (e.Name == element.Name && e.QualifiedName.Namespace == elementNs)
{
if (Match(e, element))
{
return;
}
// XmlSerializableRootDupName=Cannot reconcile schema for '{0}'. Please use [XmlRoot] attribute to change name or namepace of the top-level element to avoid duplicate element declarations: element name='{1} namespace='{2}'.
throw new InvalidOperationException(SR.Format(SR.XmlSerializableRootDupName, _getSchemaMethod.DeclaringType.FullName, e.Name, elementNs));
}
}
}