ASP.Net - Render A Partial View To String

This code snippet returns a partial view as a string, useful, when you want to return part of a view in an Ajax response.

1.         public string RenderViewToString(string viewName, ViewDataDictionary ViewData)   
2.         {   
3.             using (var sw = new StringWriter())   
4.             {   
5.                 var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName);   
6.                 var viewContext = new ViewContext(ControllerContext, viewResult.View, ViewData, TempData, sw);   
7.                 viewResult.View.Render(viewContext, sw);   
8.                 viewResult.ViewEngine.ReleaseView(ControllerContext, viewResult.View);   
9.                 return sw.GetStringBuilder().ToString();   
10.             }   
11.         }