public void AddCategory(Category category)
 {
     db.Categories.Add(category);
     Save();
 }
        public void AddCategory(Category category)
        {

        }
 public JsonResult AddCategory(Category category)
 {
     if (!ModelState.IsValid)
     {
         var message = new StringBuilder();
         foreach (ModelState modelState in ViewData.ModelState.Values)
         {
             foreach (ModelError error in modelState.Errors)
             {
                 message.Append(error.ErrorMessage);
             }
         }
         return Json("Error" + message);
     }
     _videoRepository.AddCategory(category);
     return Json("OK");
 }