using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;

namespace MvcApplication1.Models
{
   public class TestModel
   {
     public int TID { get; set; }
  
     [DataType("TName")]
     public string TName { get; set; }
  
     [DataType("TSite")]
     public string TSite { get; set; }
   }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace MvcApplication1
{
   public class FilterModelBinder:DefaultModelBinder
   {
     public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
     {
       var valueShouldFilter = bindingContext.ModelMetadata.DataTypeName;
       if (valueShouldFilter == "TName" || valueShouldFilter == "TSite")
       {
         var resultProvider = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
         if (resultProvider != null)
         {
           string result = resultProvider.AttemptedValue;
           result = result.Replace("<", "&lt;").Replace(">", "&gt;");
           return result;
         }
       }
  
       return base.BindModel(controllerContext, bindingContext);
     }
   }
}
 

protected void Application_Start()
{
   AreaRegistration.RegisterAllAreas();

   WebApiConfig.Register(GlobalConfiguration.Configuration);
   FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
   RouteConfig.RegisterRoutes(RouteTable.Routes);
   BundleConfig.RegisterBundles(BundleTable.Bundles);

   ModelBinders.Binders.DefaultBinder = new FilterModelBinder();
}

<configuration>
  <system.web>
  <httpRuntime requestValidationMode="2.0" />
  </system.web>
  <pages validateRequest="false">
  </pages>
</configuration>