private void frmQuanLiDichVu_Load(object sender, EventArgs e)
{
List <DichVuDTO> lstt = new List <DichVuDTO>();
lstt = DichVuBUS.LoadDanhSach();
for (int i = 0; i < lstt.Count; i++)
{
lstt[i].DonGia = Convert.ToDecimal(string.Format("{0:0,0}", lstt[i].DonGia));
}
gcDanhSachDichVu.DataSource = lstt;
}