Adding jQueryUI library in MVC Project

First you need to download JqueryUI via their website or Nuget Package manager, Once you get it in your project you need to add it into BundleConfig.cs file like below:

    public class BundleConfig

    {

        public static void RegisterBundles(BundleCollection bundles)

        {

            bundles.Add(new ScriptBundle("~/bundles/jqueryui").Include(

            "~/Scripts/jquery-ui-{version}.js"));

        }

    }

Now you can add it in your _Layout page :

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