public static bool Create_Appointment(string title, string date, string time, string description)
        {
            //This creates the appointment for the user
            bool success = true;

            try
            {
                using (var dbContext = new usersinfoEntities())
                {
                    userAppointmentsInfo userAppointment = new userAppointmentsInfo();
                    userAppointment.appointment_CreationDate = System.DateTime.UtcNow.Date;
                    userAppointment.appointment_Date         = DateTime.Parse(date);
                    userAppointment.appointment_Description  = description;
                    userAppointment.appointment_Time         = TimeSpan.Parse(time);
                    userAppointment.userid            = (int)HttpContext.Current.Session["userid"];
                    userAppointment.appointment_Title = title;

                    dbContext.userAppointmentsInfo.Add(userAppointment);
                    dbContext.SaveChanges();
                }
            }
            catch (Exception ex)
            {
                success = false;
            }
            return(success);
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            string username, fullname, password;

            username = Request.QueryString["usnm"].ToString();
            fullname = Request.QueryString["flnm"].ToString();
            password = Request.QueryString["ps"].ToString();
            using (var dbContext = new usersinfoEntities())
            {
                userDetails user = new userDetails();
                user.username = username;
                user.fullname = fullname;
                user.password = password;

                dbContext.userDetails.Add(user);
                dbContext.SaveChanges();

                Response.Write("The database was written");
            }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            int userid = (int)Session["userid"];

            //int userid=1;
            if (Request.QueryString["apty"] != null)
            {
                string appointmentType = Request.QueryString["apty"].ToString();

                using (var dbContext = new usersinfoEntities())
                {
                    Response.Clear();
                    Response.ContentType = "application/json; charset=utf-8";
                    var settings = new JsonSerializerSettings
                    {
                        DateFormatString     = "yyyy-MM-dd",
                        DateTimeZoneHandling = DateTimeZoneHandling.Utc
                    };
                    string json = "";

                    if (appointmentType == "up")
                    {
                        //display upcoming appointments
                        var userAppointments = dbContext.userAppointmentsInfo.Where(apps => apps.userid == userid && DbFunctions.TruncateTime(apps.appointment_Date) >= DbFunctions.TruncateTime(System.DateTime.Now)).ToList();
                        //var userAppointments1 = userAppointments.ForEach(time => DateTime.Parse(time.appointment_Time.ToString()).ToShortTimeString());

                        for (int i = 0; i < userAppointments.Count; i++)
                        {
                            //TimeSpan sp = TimeSpan.Parse(DateTime.Parse(userAppointments[i].appointment_Time.ToString()).ToShortTimeString());
                        }
                        if (userAppointments != null)
                        {
                            json = JsonConvert.SerializeObject(userAppointments, settings);
                        }
                    }
                    else
                    {
                        //display past appointments
                        var userAppointments = dbContext.userAppointmentsInfo.Where(apps => apps.userid == userid && DbFunctions.TruncateTime(apps.appointment_Date) < DbFunctions.TruncateTime(System.DateTime.Now)).ToList();
                        if (userAppointments != null)
                        {
                            json = JsonConvert.SerializeObject(userAppointments, settings);
                        }
                    }

                    Response.Write(json);
                    Response.Flush();
                    Response.End();
                }
            }
            else
            {
                string operation = Request.QueryString["op"].ToString();
                Stream req       = Request.InputStream;
                req.Seek(0, System.IO.SeekOrigin.Begin);
                string json = new StreamReader(req).ReadToEnd();

                Appointment ap = JsonConvert.DeserializeObject <Appointment>(json);
                if (operation == "create")
                {
                    try
                    {
                        using (var dbContext = new usersinfoEntities())
                        {
                            userAppointmentsInfo userAppointment = new userAppointmentsInfo();
                            userAppointment.appointment_CreationDate = System.DateTime.UtcNow.Date;
                            userAppointment.appointment_Date         = ap.date;
                            userAppointment.appointment_Description  = ap.description;
                            userAppointment.appointment_Time         = ap.time;
                            userAppointment.userid            = (int)HttpContext.Current.Session["userid"];
                            userAppointment.appointment_Title = ap.title;

                            dbContext.userAppointmentsInfo.Add(userAppointment);
                            dbContext.SaveChanges();

                            Response.Write("{\"sucess\":\"true\"}");
                            Response.End();
                        }
                    }
                    catch (Exception ex)
                    {
                        //Response.Write("\"sucess\":\"false\"");
                    }
                }
                else if (operation == "edit")
                {
                    try
                    {
                        using (var dbContext = new usersinfoEntities())
                        {
                            var appointment = dbContext.userAppointmentsInfo.SingleOrDefault(app => app.appointmentid == ap.appointmentId);

                            appointment.appointment_Date = ap.date;
                            appointment.appointment_Time = ap.time;

                            dbContext.SaveChanges();

                            Response.Write("{\"sucess\":\"true\"}");
                            Response.End();
                        }
                    }
                    catch (Exception ex)
                    {
                        //Response.Write("\"sucess\":\"false\"");
                    }
                }
                else if (operation == "delete")
                {
                    try
                    {
                        using (var dbContext = new usersinfoEntities())
                        {
                            var appointment = dbContext.userAppointmentsInfo.SingleOrDefault(app => app.appointmentid == ap.appointmentId);
                            dbContext.userAppointmentsInfo.Remove(appointment);
                            dbContext.SaveChanges();

                            Response.Write("{\"sucess\":\"true\"}");
                            Response.End();
                        }
                    }
                    catch (Exception ex)
                    {
                        //Response.Write("\"sucess\":\"false\"");
                    }
                }
                else if (operation == "logout")
                {
                    FormsAuthentication.SignOut();
                    FormsAuthentication.RedirectToLoginPage();
                }
            }
        }