Asp.Net MVC - ValidationMessage() - how to prevent HTML escaping?

Question

In my scenario I'd like to display a text with URL link within validation message attached to form element on MVC view. I'm using ValidationExtensions.ValidationMessage extension method, like this:

<%=Html.ValidationMessage(Model.Name) %>

The behavior I'm seeing is that validation message is HTML escaped, what effectively prevents me from adding a link to message. Is there a way to circumvent this behavior? My error messages aren't user-supplied, so I don't think I have to worry about output sanitization here...

hugoware · Accepted Answer · 2009-07-02 12:57:02Z

3

I'm guessing that since Html.ValidationMessage is built in you're going to either create your own version, or if you're feeling creative, since it returns a string, assign that and then unescape the characters you want to change back.

string validation = Html.ValidationMessage(Model.Name);
validation = Regex.Replace(validation, "&gt;", "<");
//etc...

answered Jul 2, 2009 at 12:57

hugoware

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1 Comment

Michał Chaniewski Over a year ago

Thanks. I've created an 'UnEscape()' extension method for string - and now I can use it whenever I need.

Ravenclawmage · Accepted Answer · 2010-08-26 22:11:48Z

3

You could use the HttpUtility.HtmlDecode(...) method along with your Html.ValidationMessage(...) method to get 'err done :D

answered Aug 26, 2010 at 22:11

Ravenclawmage

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1 Comment

George Over a year ago

@Html.Raw(HttpUtility.HtmlDecode(Html.ValidationMessageFor(x =>x.Name).ToHtmlString()));

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