title: ASP.NET MVC - Add XHTML into validation error messages
body: <p>Just starting with ASP.Net MVC and have hit a bit of a snag regarding validation messages.
  I've a custom validation attribute assigned to my class validate several properties on my model.</p>
  
  <p>When this validation fails, we'd like the error message to contain XHTML mark-up, including a link to help page, (this was done in the original WebForms project as a ASP:Panel).</p>
  
  <p>At the moment the XHTML tags such as "&lt; a >", in the ErrorMessage are being rendered to the screen. Is there any way to get the ValidationSummary to render the XHTML markup correctly? Or is there a better way to handle this kind of validation?</p>
  
  <p>Thanks</p>