BL

 public static int SaveDetails(SampleBO objSave)
        {
            SampleDA objDA = new SampleDA();
            return objDA.Save(objSave);
           // return SampleDA.Save(objSave);
        }

        public static DataSet GetDetails()
        {
            SampleDA objDA = new SampleDA();
            return objDA.GetDetails();
        }

        public static int Delete(int id)
        {
            SampleDA objDA = new SampleDA();
            return objDA.Delete(id);
        }