WPF : How to scroll a ListView control horizontal?

I manually need to scroll the content of a ListView control to the left side.

It is invoked automatically when I call scrollIntoView but only if the item to scroll to is not visible. The ListView will scroll to the item and scroll horizontal to the left side. Just like I need it to be.

But if the item to scroll to is already visible nothing will happen and that is the reaso开发者_开发百科n I need to scroll left manually.

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You could find the ScrollViewer for the ListView by traversing the Visual Tree and then call ScrollToLeftEnd. Something like this should work

private void ScrollListViewToLeft(ListView listView)
{
    ScrollViewer listViewScrollViewer = GetVisualChild<ScrollViewer>(listView);
    listViewScrollViewer.ScrollToLeftEnd();
}
private static T GetVisualChild<T>(DependencyObject parent) where T : Visual
{
    T child = default(T);
    int numVisuals = VisualTreeHelper.GetChildrenCount(parent);
    for (int i = 0; i < numVisuals; i++)
    {
        Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);
        child = v as T;
        if (child == null)
        {
            child = GetVisualChild<T>(v);
        }
        if (child != null)
        {
            break;
        }
    }
    return child;
}