public ActionResult Create(RoleModel model)
 {
     try
     {
         if (_registerbusiness.RoleExists(model.RoleName))
         {
             ModelState.AddModelError("", "Role already exists");
             return(View(model));
         }
         _registerbusiness.CreateRole(model.RoleName);
         return(RedirectToAction("Index"));
     }
     catch
     {
         return(View(model));
     }
 }