Recursion in an ASP.NET MVC view

Question

I have a nested data object for a set of items within categories. Each category can contain sub categories and there is no set limit to the depth of sub categories. (A file

Answer 1

Create your own HtmlHelper extension method like so:

namespace System.Web.Mvc
{
    public static class HtmlHelperExtensions
    {
        public static string CategoryTree(this HtmlHelper html, IEnumerable categories)
        {
            string htmlOutput = string.Empty;

            if (categories.Count() > 0)
            {
                htmlOutput += "
";
                foreach (Category category in Categories)
                {
                    htmlOutput += "
";
                    htmlOutput += category.Name;
                    htmlOutput += html.CategoryTree(category.Categories);
                    htmlOutput += "
";
                }
                htmlOutput += "
";
            }

            return htmlOutput;
        }
    }
}

Funny you should ask because I actually created one of these just yesterday.