Async and Multithreading Considerations

Exceptions may be thrown if plots are modified in one thread while another thread is performing a render. To prevent race conditions like this, lock the Plot.Sync object to prevent rendering while potentially dangerous operations are performed.

System.Timers.Timer Timer = new() { Interval = 10; Enabled = true; };

Timer.Elapsed += (s, e) =>
{
    lock (plotControl.Plot.Sync)
    {
        // Operations inside this block will not start
        // until the previous render is finished, and the next
        // render will not start until these operations complete.
        ChangeDataLength();
    }

    // Request a redraw (which may occur in another thread)
    WpfPlot1.Refresh();
};

WPF Demo: A sample application demonstrating multi-threaded plot updates in WPF is available in the WPF demo project.