public ChildGrowthCalculator_Result ChildGrowthGradeNames(ChildGrade _grade) { try { using (var db = new DBEntities()) { var Data = db.ChildGrowthCalculator(Convert.ToDouble(_grade.Weight), Convert.ToDouble(_grade.Height), Convert.ToDateTime(DateTime.ParseExact(_grade.DOB, "dd/MM/yyyy", System.Globalization.CultureInfo.InvariantCulture)), _grade.Gender, _grade.BeneType).FirstOrDefault(); return(Data); } } catch (Exception) { return(null); throw; } }