c# mysql update sorunu

private void button16_Click(object sender, EventArgs e)
        {
            try
            {
                BindingSource bs1 = new BindingSource();
                table1 = new DataTable();
                bs1.DataSource = table1;
                this.dataGridView2.DataSource = bs1;

                MySqlConnection conn1 = new MySqlConnection(ThePRNCE.Form1.cs);
                conn1.Open();

                string s1 = "select *from player.shop_deneme";
                MySqlCommand cmd1 = new MySqlCommand(s1, conn1);

                da1 = new MySqlDataAdapter();
                da1.SelectCommand = new MySqlCommand(s1, conn1);

                //There is issue in below sytax of insert command.
                MySqlCommand insertcommand1 = new MySqlCommand("insert into player.shop_deneme(shop_vnum,item_vnum,count) values(@shop_vnum, @item_vnum, count)", conn1);
                insertcommand1.Parameters.Add("@shop_vnum", MySqlDbType.Int32, 50, "shop_vnum");
                insertcommand1.Parameters.Add("@item_vnum", MySqlDbType.Int32, 50, "item_vnum");
                insertcommand1.Parameters.Add("@count", MySqlDbType.Int32, 50, "count");
                da1.InsertCommand = insertcommand1;

                MySqlCommand updatecommand1 = new MySqlCommand("update player.shop_deneme set shop_vnum=@shop_vnum,item_vnum=@item_vnum,count=@count where (shop_vnum=@shop_vnum) and (item_vnum=@item_vnum) and (count=@count)", conn1);
                updatecommand1.Parameters.Add("@shop_vnum", MySqlDbType.Int32, 50, "shop_vnum");
                updatecommand1.Parameters.Add("@item_vnum", MySqlDbType.Int32, 50, "item_vnum");
                updatecommand1.Parameters.Add("@count", MySqlDbType.Int32, 50, "count");
                da1.UpdateCommand = updatecommand1;

                MySqlCommand deletecommand1 = new MySqlCommand("delete from player.shop_deneme where shop_vnum=@shop_vnum and item_vnum=@item_vnum", conn1);
                deletecommand1.Parameters.Add("@shop_vnum", MySqlDbType.Int32, 50, "shop_vnum");
                deletecommand1.Parameters.Add("@item_vnum", MySqlDbType.Int32, 50, "item_vnum");
                da1.DeleteCommand = deletecommand1;

                da1.Fill(table1);
                conn1.Close();


            }
            catch (Exception err) { MessageBox.Show(err.Message); } 
        }

        private void button13_Click_1(object sender, EventArgs e)
        {
            da1.Update(table1);
        }