In this code I have to add data in my database there is no error but data is not added in the database.

try
           {
               string connectionString =
                   "server=((localdb)-MSSQLLocalDB);" +
                   "initial catalog=Employee;";

               using (SqlConnection conn =
                   new SqlConnection(connectionString))
               {
                   conn.Open();
                   using (SqlCommand cmd =
                       new SqlCommand("INSERT INTO Employee VALUES(" +
                           "@EmpId, @EmpName, @EmpAddress,@EmpCode,@EmpDesig)", conn))
                   {
                       cmd.Parameters.AddWithValue("@EmpId", 5);
                       cmd.Parameters.AddWithValue("@EmpName", "Amal Hashim");
                       cmd.Parameters.AddWithValue("@EmpAddress", "Bangalore");
                       cmd.Parameters.AddWithValue("@EmpCode", 007);
                       cmd.Parameters.AddWithValue("@EmpDesig", "Manager");

                       int rows = cmd.ExecuteNonQuery();
                       Console.WriteLine("you are here");

                       //rows number of record got inserted
                   }
               }
           }
           catch (SqlException ex)
           {
               Console.WriteLine("Try block is failed");
           }