<add key="LoadEJResourcesFromAssembly" value="true" />
<add key="EJResources" value="jsrender:true;jqueryeasing:true;globalize:true;themes:true;" />
If you are going to refer scripts and CSS externally, refer the necessary scripts and CSS files in Site.Master page and set false to the “LoadEJResourcesFromAssembly” key which is in the web.config file, it will skip the scripts and CSS files reference from assembly.
<add key="LoadEJResourcesFromAssembly" value="false" />
We have modified your sample based on this for your reference,
Now, you can set the value to the dropdownlist when the DataTextField is passed as an integer value.
Thanks for your update.
Please let us know you have any other queries.