private ActionResult Delete(RoleInputModel[] list)
 {
     var query = from item in list
                 where item.Delete && !(item.CanDelete)
                 select item.Name;
     foreach(var name in query)
     {
         ModelState.AddModelError("", string.Format(Resources.RoleController.CannotDeleteRole, name));
     }
     
     if (ModelState.IsValid)
     {
         try
         {
             foreach (var item in list.Where(x=>x.Delete && x.CanDelete).Select(x=>x.Name))
             {
                 UserManagementRepository.DeleteRole(item);
             }
             TempData["Message"] = Resources.RoleController.RolesDeleted;
             return RedirectToAction("Index");
         }
         catch (ValidationException ex)
         {
             ModelState.AddModelError("", ex.Message);
         }
         catch
         {
             ModelState.AddModelError("", Resources.RoleController.ErrorDeletingRole);
         }
     }
     
     var vm = new RolesViewModel(UserManagementRepository);
     return View("Index", vm);
 }
 private ActionResult Delete(RoleInputModel[] list)
 {
     var query = from item in list
                 where item.Delete && !(item.CanDelete)
                 select item.Name;
     foreach(var name in query)
     {
         ModelState.AddModelError("", "Can't delete role " + name + ".");
     }
     
     if (ModelState.IsValid)
     {
         try
         {
             foreach (var item in list.Where(x=>x.Delete && x.CanDelete).Select(x=>x.Name))
             {
                 UserManagementRepository.DeleteRole(item);
             }
             TempData["Message"] = "Roles Deleted";
             return RedirectToAction("Index");
         }
         catch (ValidationException ex)
         {
             ModelState.AddModelError("", ex.Message);
         }
         catch
         {
             ModelState.AddModelError("", "Error deleting role.");
         }
     }
     
     var vm = new RolesViewModel(UserManagementRepository);
     return View("Index", vm);
 }