LearningMVC/HelperMethods/Infrastructure/CustomHelpers.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace HelperMethods.Infrastructure
{
	public static class CustomHelpers
	{
		public static MvcHtmlString ListArrayItems(this HtmlHelper html, string[] list)
		{
			TagBuilder tag = new TagBuilder("ul");

			foreach (string str in list)
			{
				TagBuilder itemTag = new TagBuilder("li");
				itemTag.SetInnerText(str);
				tag.InnerHtml += itemTag.ToString();
			}

			return new MvcHtmlString(tag.ToString());
		}

		public static MvcHtmlString DisplayMessage(this HtmlHelper html, string msg)
		{
			string encodedMessage = html.Encode(msg);
			string result = string.Format("This is the message: <p>{0}</p>", encodedMessage);
			return new MvcHtmlString(result);
		}
	}
}