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    copied!<p>Actually HelperResult is something Microsoft would rather you didn't use, as evidenced by documentation:</p> <blockquote> <p>public class HelperResult : IHtmlString in namespace System.Web.WebPages</p> <p>Summary: This type/member supports the .NET Framework infrastructure and is not intended to be used directly from your code.</p> </blockquote> <p>A possible solution to your problem might be to wrap your description function in another helper and then pass that helper as a <a href="https://stackoverflow.com/questions/886822/what-is-a-method-group-in-c">method group</a> to your node helper, like this:</p> <pre><code>@helper Node(string title, Func&lt;HelperResult&gt; descriptions) { &lt;div&gt;@descriptions()&lt;/div&gt; } @helper Description() { &lt;span&gt;desc1&lt;/span&gt; &lt;span&gt;desc2&lt;/span&gt; } @Node("title", Description) </code></pre> <p>In any case, your first idea shouldn't work because a parameter of type Func is in fact equal to a parameterless function, in which case you need to write the lambda expression like this:</p> <pre><code>myFunction( () =&gt; doSomething) </code></pre> <p>So your function call would have been:</p> <pre><code>@node("title", () =&gt; @&lt;text&gt; &lt;span&gt;"desc1"&lt;/span&gt; &lt;span&gt;"desc2"&lt;/span&gt; &lt;/text&gt;) </code></pre> <p>Since the future of these helpers is <a href="https://stackoverflow.com/questions/4451287/razor-declarative-html-helpers">a bit dubious</a> though, I would consider switching to either <a href="http://develoq.net/2011/how-to-create-custom-html-helpers-for-asp-net-mvc-3-and-razor-view-engine/" rel="nofollow noreferrer">HtmlHelpers</a> for small snippets of html or <a href="http://rachelappel.com/razor/partial-views-in-asp-net-mvc-3-w-the-razor-view-engine/" rel="nofollow noreferrer">Partials</a> for larger chunks.</p>
 

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