public ActionResult _UpdateStudent(Students s)
 {
     ViewBag.Message = "";
     if (ModelState.IsValid)
     {
         bool update = BusinessRegistrar.UpdateStudent(s);
         if (update == true)
         {
             ViewBag.Message = s.FirstName + "'s information updated successfully";
         }
         else
         {
             ViewBag.Message = "Error Occured. Try again.";
         }
     }
     return(Json(new { result = true, responseText = "update successfully" }));
 }