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Editorial Team
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Asked: 2026-06-08T01:34:23+00:00

// Worker Method void _backgroundWorker_DoWork(object sender, DoWorkEventArgs e) { // Do something this.Progressbar1.Visibility=Visibility.Visible; }

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// Worker Method
void _backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{     
    // Do something
    this.Progressbar1.Visibility=Visibility.Visible;
}

I have error on this can anyone Please help why this is error!

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1 Answer

  1. Editorial Team

    You can’t access to the UI from another thread. Use Dispatcher

    Dispatcher.Invoke(new Action(() => { this.Progressbar1.Visibility = Visibility.Visible; }));

    And for the next time post at least error description in your question. You will get the answer faster.

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