Using Inline C# inside Javascript File in MVC Framework

Question

I am trying to get inline C# to work in my JavaScript files using the MVC Framework. I made this little test code up.

$(document).ready(function() {
    ale         


        

Answer 1

This is an old question, but for those who stumble upon in through google in the future, the best solution is to use data-* attributes to pass in the variables. A hidden element could be used, but you might as well use the <script> tag itself, and give it a unique ID.

A full example is answered here: https://stackoverflow.com/a/18993844/1445356

Answer 2

I agree with Serhat. It's best to render an HTML Hidden field, or, as Al mentioned, go to a URL for it. This can be done through a Web Service or even an IHttpHandler implementation. Then you could use a url such as "messages.axd?id=17".

Answer 3

You could make an ASPX view that renders JavaScript.

Set the content-type to text/javascript, and put your JavaScript source directly below the <%@ Page directive (without a <script> tag).

Beware that you won't get any IntelliSense for it in VS.

Answer 4

.aspx files are the view files of MVC framework. The framework only renders the views and partial views. I do not think there would exist a way to use server-side code inside javascript files.

You can include your message in a hidden field

<%-- This goes into a view in an .aspx --%>
<%= Html.Hidden("MyMessage", ViewData["Message"]) %>

and use that inside your javascript file:

// This is the js file
$(document).ready(function() {
    alert($("#MyMessage").attr("value"));
});

Answer 5

To add to Grant Wagner's answer and SLaks's answer, you can actually fool Visual Studio into giving you IntelliSense in his solution like so:

<%if (false) {%><script type="text/javascript"><%} %>
// your javascript here
<%if (false) {%></script><%} %>

In his solution it is required that when it renders to the page that there be no <script> tags, but that has a side effect that turns off JavaScript IntelliSense in Visual Studio. With the above, Visual Studio will give you IntelliSense, and at the same time not render the <script> tags when executed.

Answer 6

As others have said, the C# is not being processed by the server.

A possible solution would be to have a separate view that uses the same model and outputs the JavaScript, then reference that view in your <script type="text/javascript" src="yourJSview.aspx"></script>.

Added as per SLaks' answer:

Set the content-type to text/javascript, and put your JavaScript source directly below the <%@ Page directive (without a <script> tag).

Beware that you won't get any IntelliSense for it in VS.