Do you want to return a string as result from a Controller in ASP.NET MVC 4 Application ? If Yes , you can use return the ContentResult instead of the actual view/partial view.
How to return a string as result from a Controller in ASP.NET MVC 4 Application ?
public ActionResult Index() { return Content("Ginktage.com is a technology and programming blog"); }
In the above example , the ContentResult is returned as plain text.