private void btnLuu_Click(object sender, EventArgs e)
{
int i = 0;
foreach (DataGridViewRow dr in dgvBangDiem.Rows)
{
diem[i].Diem15Phut =(float) Convert.ToInt32(dr.Cells[1].Value);
diem[i].Diem1Tiet = (float) Convert.ToInt32(dr.Cells[2].Value);
diem[i].DiemHocKi = (float) Convert.ToInt32(dr.Cells[3].Value);
i++;
}
DiemDAO adapterDiem = new DiemDAO();
if (adapterDiem.UpdateMark(diem))
{
MessageBox.Show("Lưu thành công!");
}
else
{
MessageBox.Show("Hệ thống bị lỗi!");
}
}
