private void button2_Click(object sender, EventArgs e)
        {
            Ilac ilac = new Ilac
            {
                ilacKodu  = Convert.ToInt32(dgwIlac.CurrentRow.Cells[0].Value),
                ilacAdi   = txtGuncelleAd.Text,
                ilacTuru  = txtGuncelleTur.Text,
                ilacStt   = txtGuncelleTarih.Text,
                ilacEtken = richGuncelleEtken.Text
            };

            ilacdal.Update(ilac);
            LoadProduct();
            MessageBox.Show("İLAÇ BİLGİLERİ GÜNCELLENDİ");
        }
        public void Add(Ilac ilac1)
        {
            database.ConnectionControl();
            try
            {
                SqlCommand command = new SqlCommand("Insert into " + this.table + " values(@ad,@tur,@tarih,@etken)", database.connection);
                command.Parameters.AddWithValue("@ad", ilac1.ilacAdi);
                command.Parameters.AddWithValue("@tur", ilac1.ilacTuru);
                command.Parameters.AddWithValue("@tarih", ilac1.ilacStt);
                command.Parameters.AddWithValue("@etken", ilac1.ilacEtken);

                command.ExecuteNonQuery();
            }
            catch (SqlException exception)
            {
            }
        }
        public void Update(Ilac ilac1)
        {
            database.ConnectionControl();
            try
            {
                SqlCommand command = new SqlCommand("Update " + this.table + " set ilacAdi=@ad,ilacTuru=@tur,ilacStt=@tarih,ilacEtken=@etken where ilacKodu=@kod", database.connection);
                command.Parameters.AddWithValue("@ad", ilac1.ilacAdi);
                command.Parameters.AddWithValue("@tur", ilac1.ilacTuru);
                command.Parameters.AddWithValue("@tarih", ilac1.ilacStt);
                command.Parameters.AddWithValue("@etken", ilac1.ilacEtken);
                command.Parameters.AddWithValue("@kod", ilac1.ilacKodu);

                command.ExecuteNonQuery();
            }
            catch (SqlException exception)
            {
            }
        }