ASP.NET MVC Data Annotation Valiteion - Remote Validation with Server Side Validation!

MyRemoteAttribute.cs

// NOTICE: 
// This is "concept" sample code.
// Not enough resouce disposing, etc.

public class MyRemoteAttribute : RemoteAttribute 
{ 
    public RemotableCustomAttribute(string action, string controller) : base(action, controller) 
    { 
    } 

    public string ControllerName { get { return this.RouteData["controller"] as string; } } 

    public string ActionName { get { return this.RouteData["action"] as string; } } 

    // 
    // Server side validation here!
    //
    public override bool IsValid(object value) 
    {
         if (value == null) return true; 

         // Create instance of ASP.NET MVC Controler.
         var context = new HttpContextWrapper(HttpContext.Current); 
         var routeData = new RouteData(); 
         var requestContext = new RequestContext(context, routeData); 
         var controller = ControllerBuilder.Current 
             .GetControllerFactory() 
             .CreateController(requestContext, controllerName); 

        // Invoke action method, and eval return value.
        var result = controller.GetType().InvokeMember( 
            this.ActionName, 
            BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, 
            null, 
            controller, new object[] { value }
        ) as JsonResult; 

        var isValid = (result.Data is bool) && ((bool)result.Data); 
        return isValid; 
   } 
} 

There is an issue about this solution. In-case if you have controllers with the same name in some Areas, you will face a problem.

Multiple types were found that match the controller named 'Company'. This can happen if the route that services this request does not specify namespaces to search for a controller that matches the request. If this is the case, register this route by calling an overload of the 'MapRoute' method that takes a 'namespaces' parameter.

The request for 'Company' has found the following matching controllers:
NPIIS.Web.MVC.Areas.ControlPanel.Controllers.CompanyController
NPIIS.Web.MVC.Controllers.CompanyController

var controller = ControllerBuilder.Current <= PROBLEM

SOLUTION TO THIS PROBLEM:

//var context = new HttpContextWrapper(HttpContext.Current);
//var routeData = new RouteData();
//var requestContext = new RequestContext(context, routeData);
var requestContext = HttpContext.Current.Request.RequestContext;