private void button1_Click(object sender, EventArgs e)
{
ketNoi.DbConnection();
ketNoi.updateToDataBase("update hoadon set thanhtoan='1' where tenkh='" + HD.tenKH + "' and ngay='" + HD.ngay + "' and gio='" + HD.gio + "' and giomuon='" + HD.gioMuon + "'");
this.ParentForm.Hide();
XuatHDSan hd = new XuatHDSan();
hd.ShowDialog();
this.ParentForm.Close();
}
private void btnDat_Click(object sender, EventArgs e)
{
DU.tenDU = cbbNuocUong.Text;
DU.sL = comboBox1.Text;
ketNoi.DbConnection();
string sql = "insert INTO hoadondu(tendu,soluong) values('" + cbbNuocUong.Text + "','" + comboBox1.Text + "')";
string sql2 = "update douong set ton=ton-" + comboBox1.Text + " where tendu='" + cbbNuocUong.Text + "'";
ketNoi.updateToDataBase(sql);
ketNoi.updateToDataBase(sql2);
this.ParentForm.Hide();
XuatHDSan hd = new XuatHDSan();
hd.ShowDialog();
this.ParentForm.Close();
}
