ASP.NET MVC Razor - JavaScript execution aborts when C# variables are emitted

Question

I upgraded an MVC3 proj to MVC4 and it appears some javascript functions are not being called after I emit some C# in Razor.

<script type="text/javascript">
$(function () {
    var obj = @(Html.Raw(Model.InterestsJson)) ;

    alert('This is never called.');
}); 
</script>

When I extract the emitted string from my Model.interestsJson, javascript functions run normally.

<script type="text/javascript">
$(function () {
    var obj = [{ "Id": 1, "Name": "Sports" }, { "Id": 2, "Name": "Entertainment" }];
    alert('This will now be called'); 
}); 
</script>

What is weird is that this did work up until I upgraded the project to MVC4.

The first thing I did was check for js errors but nothing threw an exception.

Any ideas?

I just love the it does not work problem description. It's so exhaustive. It provides so much details. It's a love. Please go ahead and read sscce.org and ask a real question because I can put the snippet you have shown in a jsfiddle and prove you that it works. The conclusion is that there is something else in your code that you didn't show that's causing the problem. And by mentioning a problem, what is it? Error message? Something? Did you check the FireBug console? Was there something? — Darin Dimitrov
– Darin Dimitrov, Commented Dec 26, 2011 at 22:24

Artem Koshelev · Accepted Answer · 2011-12-27 05:00:52Z

1

The @(Html.Raw(Model.InterestsJson)) statement emits invalid JS code, so next statement cannot be parsed. Open page source and check what's wrong with it.

Probably, this should fix the problem.

@{ Html.Raw(Model.InterestsJson); }

answered Dec 27, 2011 at 5:00

Artem Koshelev

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