//public virtual void NotifyChangeColumnType_RefsOnly(IColumnStructure newcol) { }
//public bool IsFreezed { get { return m_isFreezed; } }
//public IAbstractObjectStructure FreezeUntyped()
//{
// if (IsFreezed) return this;
// if (m_freezedCopy != null) return m_freezedCopy;
// m_freezedCopy = (AbstractObjectStructure)CloneUntyped();
// m_freezedCopy.m_isFreezed = true;
// return m_freezedCopy;
//}
//public abstract IAbstractObjectStructure CloneUntyped();
protected void CopyFromObject(IAbstractObjectStructure source)
{
// groupid is NOT merged
m_specificData.Clear();
m_specificData.AddAll(source.SpecificData);
Comment = source.Comment;
XmlTool.CopyProperties(source, this);
}