Question

When my application is loading. I display a progress bar using the code below. The problem is if someone clicks on the toolbar context menu (the way to exit) it will be blocked until this the progress bar is closed. Does anyone know a better way of achieving this?

The reason I’m using ShowDialog is that when I used Show the progress bar wouldn’t animate – I’m using the MarqueeStyle.

Thanks

public partial class PopUpProgessBar : Form
{
    public PopUpProgessBar()
    {
        InitializeComponent();
    }

    Thread t;
    private void StartAnmiation()
    {
        this.Update();
        this.ShowDialog();
    }

    public void Stop()
    {
        if (t != null)
        { 
            t.Abort();
            t.Join();
        }
    }

    public void Start()
    {
        if (t == null)
        {
            t = new Thread(new ThreadStart(this.StartAnmiation));
            t.Start();
        }
    }

Answer 1

This code doesn’t look quite right. Are you sure it doesn’t throw cross-thread violations? In general, your whole metaphor here is wrong. You need to keep the GUI on the GUI thread. Load your application on the background thread and have it send progress updates to the GUI thread.