public ActionResult AssignGrades(AssignGradeModel model, int CourseId) { var objUtilities = new Utilities.Utilities(); var validateAssignGrade = objUtilities.AssignGrade(model); if (validateAssignGrade) { return(RedirectToAction("TeacherHome", "Home", new { courseId = CourseId })); } ModelState.AddModelError("", "Enter Valid StudentId."); return(View()); }