private void FRMBaocao_Load(object sender, EventArgs e) { baoCaoBS bs = new baoCaoBS(); dataGridView1.DataSource = bs.baocao(); tinhtongtien(); }
private void tinhtongtien() { decimal tongtien = 0; int soluong = 0; baoCaoBS bs = new baoCaoBS(); List <BaocaoDB> ds = bs.baocao(); for (int i = 0; i < ds.Count; i++) { tongtien += Convert.ToDecimal(ds[i].gia.ToString()); soluong += Convert.ToInt32(ds[i].gia); } lbtongtien.Text = "" + Convert.ToString(tongtien) + " vnđ"; lbsoluong.Text = Convert.ToString(soluong); }