private NhaCungCap getNhaCungCap()
{
NhaCungCap ncc = new NhaCungCap();
ncc.mancc = _nccService.SinhMaNhaCungCap().Trim();
ncc.tenncc = txtTenNCC.Text.Trim();
ncc.diachi = txtDiaChi.Text.Trim();
ncc.sdt = txtDienThoai.Text.Trim();
ncc.email = txtEmail.Text.Trim();
return(ncc);
}