progress bar on function execution C# WinForms

Hi;

I need a progress bar that is mapped to an extraction of a zip file on windows forms but for some reason, i am failing in this code.

Any help?

   private void extractZipButton_Click(object sender, EventArgs e)
        {
             ThreadPool.QueueUserWorkItem((obj) =>
    {
        ExtractZipFile(new FileInfo(Path.GetFullPath(_tomcatPath)));
            Parallel.For(0, 100, i =>
            {
             
                Invoke(new Action(() =>
                {
                    extractProgressBar.Value = (i * 100) / 10;
                }));
            });
    });

        }

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jazzIIIloveAsked:
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AndyAinscowFreelance programmer / ConsultantCommented:
Does this work (use DoEvents to allow any pending update of UI to be processed)

Invoke(new Action(() =>
                {
                    extractProgressBar.Value = (i * 100) / 10;
Application.DoEvents();
                }
0

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jazzIIIloveAuthor Commented:
Hi;

I will check this tomorrow.

Best regards.
0
jazzIIIloveAuthor Commented:
Hi;

Unfortunately it is not working and it crashes now. Any ideas?

Best regards
0
jazzIIIloveAuthor Commented:
When I debug, the error is

Cross-thread operation not valid: Control 'diagnosticsTextBox' accessed from a thread other than the thread it was created on.
0
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