private void CheckForwardRefs() {
IdRefNode next = idRefListHead;
while (next != null) {
if(FindId(next.Id) == null) {
SendValidationEvent(new XmlSchemaException(Res.Sch_UndeclaredId, next.Id, reader.BaseURI, next.LineNo, next.LinePos));
}
IdRefNode ptr = next.Next;
next.Next = null; // unhook each object so it is cleaned up by Garbage Collector
next = ptr;
}
// not needed any more.
idRefListHead = null;
}
