private Cell GroupControl(string type)
        {
            Cell cell = null;

            switch (type.ToLower())
            {
            case "groupobject":
                cell = new GroupObject();
                break;

            case "calculategroupobject":
                cell = new CalculateGroupObject();
                break;

            case "algorithmgroupobject":
                cell = new AlgorithmGroupObject();
                break;
            }
            return(cell);
        }
 public CalculateGroupObject(CalculateGroupObject groupobject) : base(groupobject)
 {
     _expression    = groupobject.Expression;
     _sortoption    = groupobject.SortOption;
     _informationid = groupobject.InformationID;
 }