Ajax.BeginForm doesn't fire AJAX script, falls back on postback

To get a local copy as part of your MVC project" From VS2013, right click on your MVC 5 project, select "Manage NuGet Packages". Select "Online" and search for "jquery.unobtrusive-ajax", Then Install "Microsoft.jQuery.Unobtrusive.Ajax".

I had the same issue on a dummy MVC5 project.

Add this to your BundleConfig

        bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(
                    "~/Scripts/jquery.unobtrusive*",
                    "~/Scripts/jquery.validate*"));

Add this to your layout.cshtml

@Scripts.Render("~/bundles/jqueryval")

I didn't add any new files to my projects so if you have an MVC 4 or 5 web project, I doubt if you would need to add any extra js files.

It solved my issue. I hope it solves yours.

Everything has started working since I included the following script in my layout:

<script src="http://ajax.aspnetcdn.com/ajax/mvc/3.0/jquery.unobtrusive-ajax.min.js"></script>

On the Microsoft CDN it looks as though this script is MVC3-specific.

Feel free to contribute better ways if possible, or answer the question: "Why isn't this script included in the MVC project template (VS2013)?"