private void GetEventsForUser(DateTime start, DateTime end)
        {
            List<Events> events = new List<Events>();

            try
            {
                User u = (User)Session["nusNETuser"];

                if (u == null)
                {
                    Alert.Show("Please Login First!", true, "SignIn.aspx");
                    return;
                }

                EventClient client = new EventClient();
                List<Events> userEvent = client.ViewEventsByDateAndTag(u, start, end, txtTag.Text.Trim()).ToList<Events>();
                client.Close();

                rtpEvent.DataSource = userEvent;
                rtpEvent.DataBind();
            }
            catch (Exception ex)
            {
                Alert.Show("Error Retreiving List of Events from Server", false, "~/Default.aspx");
                return;
            }
        }