unable to update progress bar with threading in C#

Question

    private void button1_Click(object sender, EventArgs e)
    {
        PROGRESS_BAR.Minimum = 0;
        PROGRESS_BAR.Maximum = 100;
        PROGRESS_BAR.Value = 0;

          


        

Answer 1

You cannot interact with UI elements from non-UI thread. You need to use code like

this.BeginInvoke((Action)(() => PROGRESS_BAR.PerformStep()));