Question

I am having a trouble with background worker

private void backgroundPBar_ProgressChanged(object sender, ProgressChangedEventArgs e)

The function doesn’t execute when backgroundPBar.ReportProgress(value);

here’s the code:

private void backgroundPBar_DoWork(object sender, DoWorkEventArgs e) {
    while (fileTransfer.busy) {
        if (fileTransfer.sum > 0) {
            int value = Convert.ToInt32((fileTransfer.sum * 100) / fileTransfer.fileSize);
            backgroundPBar.ReportProgress(value);
            Console.WriteLine(value);
        }
    }
}

private void backgroundPBar_ProgressChanged(object sender, ProgressChangedEventArgs e) {
    progressBarFile.Value = e.ProgressPercentage;
    this.Text = e.ProgressPercentage.ToString() + "%";
}

How can I fix it?

Answer 1

Here’s a tutorial of how to use backgroundworker with ProgressBar

You should call (RunWorkerAsync) first then the backgroundPBar_DoWork will start executing its code.

backgroundPBar.RunWorkerAsync();