public string SaveMedicine(StockMedicine aStockMedicine)
 {
     if (aMedicineGateway.SaveMedicine(aStockMedicine) > 0)
     {
         return "Saved Successfully";
     }
     else
     {
         return "Failed";
     }
 }
        protected void saveButton_Click(object sender, EventArgs e)
        {
            DataTable DTab = (DataTable)ViewState["Medicine"];
                 foreach(DataRow dr in DTab.Rows)
            {

                StockMedicine aStockMedicine = new StockMedicine();

                aStockMedicine.ThanaId = int.Parse(ddlThana.SelectedValue);
                aStockMedicine.CenterId = int.Parse(ddlCenter.SelectedValue);

                aStockMedicine.MedicineId = int.Parse(dr["id"].ToString().Trim());
                aStockMedicine.Quantaty = int.Parse(dr["Quantaty"].ToString().Trim());

                msgLabel.Text = aMedicineManager.SaveMedicine(aStockMedicine);

            }
        }