public static GetDataString(categoryId : string) : string
        {   
            if (categoryId!="")
            { def res = linq<#from i in _CfgIzmeritel 
                    from c in _CfgTypeIzmer
                    where i.ID_Izmerit==int.Parse(categoryId)
                    where c.ID_TypeIzmerit == i.ID_TypeIzmerit
                    select (c.CaptionForTables)#> ; res.ToArray()[0]
            } else ""
        }