C# (CSharp) QLQuanAn XuLyDuLieu.kiemtratontai Examples

Example #1

        private void btThem_Click(object sender, EventArgs e)
        {
            string MaMA = "MA0001";

            while (XuLyDuLieu.kiemtratontai(MaMA))
            {
                if (dem < 10)
                {
                    MaMA = "MA000" + dem.ToString();
                }
                else if (dem < 100)
                {
                    MaMA = "MA00" + dem.ToString();
                }
                else if (dem < 1000)
                {
                    MaMA = "MA0" + dem.ToString();
                }
                else
                {
                    MaMA = "MA" + dem.ToString();
                }
                dem++;
            }

            DataRow cn = dsMM.NewRow();

            cn[0] = MaMA;
            cn[1] = txtTen.Text;
            cn[2] = txtDonGia.Text;

            cn[3] = txtThongTin.Text;
            cn[4] = "Dessert";
            cn[5] = cbbChiNhanh.SelectedValue;
            dsMM.Rows.Add(cn);
            XuLyDuLieu.ghiDuLieu("MON_AN", dsMM);
            loadDSMM();
        }