public List<MedicineQuantity> GetdicineQuantities()
        {
            List<MedicineQuantity> medicines = new List<MedicineQuantity>();

            SqlConnection connection = new SqlConnection(connectionstring);

            string query = "SELECT * FROM Table_MedicineQuantity";

            SqlCommand command = new SqlCommand(query, connection);

            connection.Open();

            SqlDataReader reader = command.ExecuteReader();

            while (reader.Read())
            {
                MedicineQuantity medicine = new MedicineQuantity();

                medicine.Id = int.Parse(reader["medicineQuantity_Id"].ToString());
                medicine.Name = reader["medicineQuantity_Name"].ToString();
                medicine.Quantity = int.Parse(reader["medicineQuantity_Quantity"].ToString());
                medicine.CenterId = int.Parse(reader["medicineQuantity_CenterId"].ToString());

                medicines.Add(medicine);
            }

            return medicines;
        }
        public string InsertMedicineQunatity(MedicineQuantity medicineQuantity)
        {
            int value=centerGateway.MedicineQuantityEntry(medicineQuantity);

            if (value > 0)
            {
                return "medicine quantity saved successfully";
            }

            else
            {
                return "Operation Failed";
            }
        }
        public int MedicineQuantityEntry(MedicineQuantity medicineQuantity)
        {
            SqlConnection connection = new SqlConnection(connectionstring);

            string query = "INSERT INTO Table_MedicineQuantity VALUES('" + medicineQuantity.Name + "','" + medicineQuantity.Quantity + "','" + medicineQuantity.CenterId + "')";

            SqlCommand command = new SqlCommand(query, connection);

            connection.Open();

            int rowsAffected = command.ExecuteNonQuery();

            connection.Close();

            return rowsAffected;
        }