public void InsertStudentCourse(ClassStudentDetails s)
        {
            try
            {
                int  sid = s.StudentId, cid = s.CourseId;
                bool status = false;
                status = CheckIfExists(sid, cid);

                if (status == false)
                {
                    SqlCommand com = new SqlCommand("Sp_InsertStudentCourse", con);
                    com.CommandType = CommandType.StoredProcedure;
                    com.Parameters.AddWithValue("@prmsid", s.StudentId);
                    com.Parameters.AddWithValue("@prmcid", s.CourseId);
                    con.Open();
                    com.ExecuteNonQuery();
                    con.Close();
                }
                else
                {
                }
            }
            catch (Exception e)
            { Console.WriteLine("Catch error: " + e); }
        }
        public ActionResult StudentCourseInsert(FormCollection f)
        {
            ClassStudentDetails s = new ClassStudentDetails();

            s.StudentId = Convert.ToInt32(f["StudentId"]);
            s.CourseId  = Convert.ToInt32(f["CourseId"]);
            dblayer.InsertStudentCourse(s);
            return(RedirectToAction("StudentCourseDisplay"));
        }