public ActionResult Index(StudentViewModel st) { if (Session["action"].ToString() == "Save") { st.EmailId = Session["emailid"].ToString(); if (ModelState.IsValid) { int i = stb.CreateStudent(st); if (i > 0) { ViewBag.SaveText = "Update"; } } return(Content("Student Created Successfully", "text/html")); } else { if (ModelState.IsValid) { st.EmailId = Session["emailid"].ToString(); int i = stb.UpdateStudent(st); } return(Content("Student updated Successfully", "text/html")); } }