Generic method in a non-generic class?

I'm sure I've done this before, but can't find any example of it! Grrr...

For example, I want to convert an IList<T> into a BindingList<T>:

public class ListHelper
{
    public static BindingList<T> ToBindingList(IList<T> data)
    {
        BindingList<T> output = new BindingList<T>();

        foreach (T item in data)
            output.Add(item);

        return output;
    }
}