rebind grid after windows post

[lydia]

hi,
i want to know if there is a solution for my issue
i have a view used to edit informations.
in this view i insert a partiel view wich contains a grid , in that grid i want to custom the delete action .so when the  Custom delete button is clicked i display a window .

this window contains a combobox ( list  the reasons of suppression) and the button 'validate' .when the button is clicked i post the row's key and the reason to the controlleur action by javascipt function :

$('#feedback-form').submit(function (e) {

        var data = $(this).serialize();

        $.post(this.action, data, function () {

        

        });

 

        e.preventDefault();

 

    });




my action look like this 

public ActionResult DeleteChieldP(int? key, string motifcbx)
       {
           if (key.HasValue)
           {
               if (EmployeeChildren.FoundChild(key.Value))
               {
                   EmployeeChildren.DeleteChild(key.Value, motidcbx);
               }
           }


           return new HttpStatusCodeResult(204);

       }

 
but the problem is that grid is not rebinded automaticly 
is there another solution for my issue
(i used  telerik mvc extensions)
thanks