ClassNameViewEngine.cs

public class ClassnameViewEngine : RazorViewEngine, IViewEngine
    {
        private readonly Assembly[] _searchAssemblies;

        public ClassnameViewEngine(params Assembly[] searchAssemblies)
        {
            _searchAssemblies = searchAssemblies;
        }

        //This needs to be initialized to the root namespace of your MVC project.
        //Usually, the namespace of your Global.asax's codebehind will do the trick.
        private static readonly string RootNamespace = typeof(MvcApplication).Namespace;

        private IEnumerable<string> GetPath(ControllerContext controllerContext, string viewName)
        {
            var type = this._searchAssemblies
                .Select(a => a.GetType(viewName))
                .FirstOrDefault(t => t != null);
            if (type == null) yield break;
            

            //TODO: Cache?
            var targetType = type;
            var viewFileName = targetType.FullName.Substring(targetType.Assembly.GetName().Name.Length + 1).Replace(".", "/");
            
            yield return (string.Format("~/{0}.cshtml", viewFileName));

        }
        ViewEngineResult IViewEngine.FindView(ControllerContext controllerContext, string viewName, string masterName, bool useCache)
        {
             
            var paths = GetPath(controllerContext, viewName);
            var path = paths.FirstOrDefault(p => VirtualPathProvider.FileExists(p));

            if (path != null)
            {
                return new ViewEngineResult(CreateView(controllerContext, path, null), this);
            }
            //Check the usual suspects
            return base.FindView(controllerContext, viewName, masterName, useCache);
        }

        public override ViewEngineResult FindPartialView(ControllerContext controllerContext, string partialViewName, bool useCache)
        {
            var paths = GetPath(controllerContext, partialViewName);
            var path = paths.FirstOrDefault(p => VirtualPathProvider.FileExists(p));

            if (path != null)
            {
                return new ViewEngineResult(CreateView(controllerContext, path, null), this);
            }
            //check the usual suspects
            return base.FindPartialView(controllerContext, partialViewName, useCache);
        }

         
    }