MVC :: Generate Hierarchical Menu From Database?

Mar 2, 2011

Site.Master file contains

<ul id="nav">
<% Html.RenderAction("Menu", "ShoppingCart"); %>
</ul>
[ChildActionOnly]
public ActionResult Menu()
{
// for to geenrate menu ?
return ????
}

How to generate hierarchical menu below in Menu method from database data ? Should I use stringbuilder or is there better way ?

Resulting html shoudl look like:

[Code]....

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