private void btnTonKho_Click(object sender, RoutedEventArgs e)
 {
     Report.BaoCaoTonKho.WindowBaoCaoTonKho win = new Report.BaoCaoTonKho.WindowBaoCaoTonKho(mTransit);
     win.ShowDialog();
 }
 private void btnBaoCaoTonKho_Click(object sender, RoutedEventArgs e)
 {
     Report.BaoCaoTonKho.WindowBaoCaoTonKho win = new Report.BaoCaoTonKho.WindowBaoCaoTonKho(mTransit);
     win.ShowDialog();
 }