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copied!<p>This is an excellent opportunity to look at the source code that's available to us for ASP.NET (<a href="http://aspnetwebstack.codeplex.com" rel="noreferrer">http://aspnetwebstack.codeplex.com</a>).</p> <p>Looking at HtmlHelper.cs, this is the code for <code>Html.Raw()</code>:</p> <pre><code>public IHtmlString Raw(string value) { return new HtmlString(value); } public IHtmlString Raw(object value) { return new HtmlString(value == null ? null : value.ToString()); } </code></pre> <p>And this is the code for the MvcHtmlString class:</p> <pre><code>namespace System.Web.Mvc { public sealed class MvcHtmlString : HtmlString { [SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes", Justification = "MvcHtmlString is immutable")] public static readonly MvcHtmlString Empty = Create(String.Empty); private readonly string _value; public MvcHtmlString(string value) : base(value ?? String.Empty) { _value = value ?? String.Empty; } public static MvcHtmlString Create(string value) { return new MvcHtmlString(value); } public static bool IsNullOrEmpty(MvcHtmlString value) { return (value == null || value._value.Length == 0); } } } </code></pre> <p>The most significant difference is that <code>Html.Raw()</code> accepts any object, while <code>MvcHtmlString.Create()</code> only accepts strings. Also, <code>Html.Raw()</code> returns an interface, while the Create method returns an MvcHtmlString object. Lastly, the Create deals with null differently.</p>

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