How to scroll to bottom of ListBox?

Question

I am using a Winforms ListBox as a small list of events, and want to populate it so that the last event (bottom) is visible. The SelectionMode is set to none. T

Answer 1

This is what I ended up with for WPF (.Net Framework 4.6.1):

Scroll.ToBottom(listBox);

Using the following utility class:

public partial class Scroll
{
    private static ScrollViewer FindViewer(DependencyObject root)
    {
        var queue = new Queue(new[] { root });

        do
        {
            var item = queue.Dequeue();
            if (item is ScrollViewer) { return (ScrollViewer)item; }
            var count = VisualTreeHelper.GetChildrenCount(item);
            for (var i = 0; i < count; i++) { queue.Enqueue(VisualTreeHelper.GetChild(item, i)); }
        } while (queue.Count > 0);

        return null;
    }

    public static void ToBottom(ListBox listBox)
    {
        var scrollViewer = FindViewer(listBox);

        if (scrollViewer != null)
        {
            scrollViewer.ScrollChanged += (o, args) =>
            {
                if (args.ExtentHeightChange > 0) { scrollViewer.ScrollToBottom(); }
            };
        }
    }
}