private void btnNangLuong_Click(object sender, EventArgs e)
{
this.bindingSourceLuong.DataSource = NhanVienControl.LayDsLuongNhanVien(dtngaynangluong.Value.ToShortDateString());
this.reportViewerLuong.RefreshReport();
m_NhanVienCtrl.CapNhatCanSu(dtngaynangluong.Value.ToShortDateString());
m_NhanVienCtrl.CapNhatChuyenVien(dtngaynangluong.Value.ToShortDateString());
}