How to get ListBox ItemsPanel in code behind

Question

I have a ListBox with an ItemsPanel

Answer 1

sorry I just noticed I forgot to save the edit...I realize you've already accepted an answer, but it seems more of a hack to me. Here's my implementation of FindChild, you might want to use it for the future or if you're going to be doing this often.

public static T FindChild(this FrameworkElement obj, string name)
{
    DependencyObject dep = obj as DependencyObject;
    T ret = default(T);

    if (dep != null)
    {
        int childcount = VisualTreeHelper.GetChildrenCount(dep);
        for (int i = 0; i < childcount; i++)
        {
            DependencyObject childDep = VisualTreeHelper.GetChild(dep, i);
            FrameworkElement child = childDep as FrameworkElement;

            if (child.GetType() == typeof(T) && child.Name == name)
            {
                ret = (T)Convert.ChangeType(child, typeof(T));
                break;
            }

            ret = child.FindChild(name);
            if (ret != null)
                break;
        }
    }
    return ret;
}

It checks all the children and the children's children comparing the type and Name set on the control. Use it like this:

StackPanel ipanel = ThumbListBox.FindChild("ThumbListStack");
if(ipanel == null)
    MessageBox.Show("couldn't find anything");
else
    MessageBox.Show("Aha! Found: " ipanel.Name);