private void btnCreateSalSheet_Click(object sender, RoutedEventArgs e)
        {
            SalarySheetWindow win = new SalarySheetWindow();

            win.ShowDialog();
        }
 private void btnCreateSalSheet_Click(object sender, RoutedEventArgs e)
 {
     SalarySheetWindow win = new SalarySheetWindow();
     win.ShowDialog();
 }