Closing OpenFileDialog/SaveFileDialog

Question

We have a requirement to close child form as part of auto logoff. We can close the child forms by iterating Application.OpenForms from the timer thread. We are not able to c

Answer 1

[workaround] here is example:

You should define fully transparent window ex. "TRANSP";

Every time you need to show dialog, you need to show TRANSP and pass TRANSP as a parameter to ShowDialog method.

When the application shuts down - call Close() Method of TRANSP window. Child dialogs will close.

    public partial class MainWindow : Window
{
    OpenFileDialog dlg;
    TranspWnd transpWnd;

    public MainWindow()
    {
        InitializeComponent();

        Timer t = new Timer();
        t.Interval = 2500;
        t.Elapsed += new ElapsedEventHandler(t_Elapsed);
        t.Start();
    }

    void t_Elapsed(object sender, ElapsedEventArgs e)
    {
        Dispatcher.BeginInvoke(new Action(() =>
        {
            transpWnd.Close();
        }), null);
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        transpWnd = new TranspWnd();
        transpWnd.Visibility = System.Windows.Visibility.Hidden; //doesn't works right
        transpWnd.Show();

        dlg = new OpenFileDialog();
        dlg.ShowDialog(transpWnd);
    }
}