Question

I put a function in an existing.js file (I tried two different files) so that the method would be available multiple places without repeating the code. I even created a simple function just to make sure it wasn’t something my function was messing up.

function doNothing() {
    alert("Dammit."); 
}

I can see the method in the intellisense list in my .ascx control, but as soon as I try to step into it, it fails.

Below is how I tried to reference the file and it seemed to work as far as seeing the methods, but it won’t work.

<script src="/javascript/messages.js" language="javascript" type="text/javascript"></script>

Any ideas? Any common mistakes that I may be making? It looks like it should work.

Note: when the methods are inside the .ascx file, they work fine, even with missing semi-colons.

Answer 1

Even if IntelliSense suggested "/javascript/messages.js", the path will be wrong if your application is installed under a virtual directory instead of at the root of the Web site. For example, the full URL of the JavaScript file might be at http://www.example.com/myapp/javascript/messages.js, but because the src attribute starts with a /, the browser will access http://www.example.com/javascript/messages.js (without the “myapp” virtual directory) instead.

If you’re using WebForms, you can change the src attribute as follows:

src='<%= this.Page.ResolveClientUrl("~/javascript/messages.js") %>'