protected void grdGridView_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "EditField")
            {
                hdnOperationType.Value = "Update";
                int pkid = Convert.ToInt32(e.CommandArgument);
                hdnIdPK.Value = pkid.ToString();
                MedicineBAO BAO = new MedicineBAO();
                int         id  = Convert.ToInt32(Session["HospitalId"]);
                Medicine    obj = BAO.GetMedicineDetailsById(pkid, id);
                if (obj != null)
                {
                    txtMedicineName.Text     = obj.MedicineName;
                    txtMedicineCategory.Text = obj.MedicineCategory;
                    txtRemark.Text           = obj.Remark;
                }
                pnlAddForm.Visible = true;
                pnlGrid.Visible    = false;
            }
            if (e.CommandName == "DeleteField")
            {
                int         id  = Convert.ToInt32(e.CommandArgument);
                MedicineBAO BAO = new MedicineBAO();

                BAO.DeleteMedicine(id);

                FillGridView();
            }
        }