partial         void CopyExtraPropertiesToClone(Add clone, bool includeLocalProperties);
 public Add Clone(bool includeLocalProperties)
 {
     var c = new Add
             {
                 ownerId = ownerId,
                 sortOrder = sortOrder,
                 text = text,
             };
     CopyExtraPropertiesToClone(c, includeLocalProperties);
     return c;
 }