internal override void Reinit()
 {
     base.Reinit();
     CalculationGroup.RenewMetadataObject();
     CalculationGroup.Reinit();
     //NameField = new CalculationGroupAttribute(DataColumns.First());
 }
        internal override void Reinit()
        {
            base.Reinit();
            Handler.WrapperLookup.Remove(CalculationGroup.MetadataObject);
            CalculationGroup.MetadataObject = MetadataObject.CalculationGroup;
            Handler.WrapperLookup.Add(CalculationGroup.MetadataObject, CalculationGroup);

            CalculationGroup.Reinit();
        }