How can I find WPF controls by name or type?

Question

I need to search a WPF control hierarchy for controls that match a given name or type. How can I do this?

Answer 1

I edited CrimsonX's code as it was not working with superclass types:

public static T FindChild(DependencyObject depObj, string childName)
   where T : DependencyObject
{
    // Confirm obj is valid. 
    if (depObj == null) return null;

    // success case
    if (depObj is T && ((FrameworkElement)depObj).Name == childName)
        return depObj as T;

    for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObj); i++)
    {
        DependencyObject child = VisualTreeHelper.GetChild(depObj, i);

        //DFS
        T obj = FindChild(child, childName);

        if (obj != null)
            return obj;
    }

    return null;
}