50个报警限制

我正在开发一个应用程序在windows手机v8。它需要添加60个警报(每天2个警报)，但MSDN文章中描述的限制是50个警报在按钮上单击我必须创建所有60个警报上循环，或者我可以添加10个警报，当最后一个警报开始或结束时，可以添加10多个警报。我已经找过了，但没有找到任何解决办法。当警报对话框打开或警报启动时是否有任何事件，也许我可以检查警报是否为最后一次，然后我可以添加10多个警报并删除或更换以前的警报。有什么建议吗?这是我的代码

QList的值取自数据库

for (int i = 0; i < QList.Count; i++)
           {
               //double seconds = 60.0 * (double)i;
               string alarmName = "Sehar Alert " + i.ToString();
               Alarm alarm = new Alarm(alarmName);
               alarm.Content = "Its Sehar time in " + Cityname + " City. " + i.ToString();

               var reminder = ScheduledActionService.Find(alarmName);

               if (reminder != null)
               {
                   ScheduledActionService.Remove(alarmName);
               }
               string datetime = QList[i].date +" "+ QList[i].Sehar;
               DateTime sherTime = Convert.ToDateTime(datetime);
               if (sherTime > sherT)
               {
                   // DateTime seharTime = new DateTime(2014, 6, 10, 10, 12, 0);
                   alarm.BeginTime = sherTime;// DateTime.Now.AddSeconds(seconds);
                   alarm.Sound = new Uri("Assets/Sounds/azan1.mp3", UriKind.Relative);
                   //  alarm.ExpirationTime = alarm.BeginTime.AddSeconds(10.0);
                   alarm.RecurrenceType = RecurrenceInterval.None;
                   ScheduledActionService.Add(alarm);
               }
               // Aftar time in Different City
               string IftarName = "Iftar Alert " + i.ToString();
               Alarm Ifatealarm = new Alarm(IftarName);
               Ifatealarm.Content = "Its Aftar time in " + Cityname + " City. " + i.ToString();

               var Iftarreminder = ScheduledActionService.Find(IftarName);

               if (Iftarreminder != null)
               {
                   ScheduledActionService.Remove(IftarName);
               }
               string Iftardatetime = QList[i].date + " " + QList[i].Iftar;
               DateTime IfTarTime = Convert.ToDateTime(Iftardatetime);
               if (IfTarTime > sherT)
               {

                   // DateTime seharTime = new DateTime(2014, 6, 10, 10, 12, 0);
                   Ifatealarm.BeginTime = sherTime;// DateTime.Now.AddSeconds(seconds);
                   Ifatealarm.Sound = new Uri("Assets/Sounds/azan1.mp3", UriKind.Relative);
                   //  alarm.ExpirationTime = alarm.BeginTime.AddSeconds(10.0);
                   Ifatealarm.RecurrenceType = RecurrenceInterval.None;
                   ScheduledActionService.Add(Ifatealarm);
               }
           }

 RootFrame.Obscured += new EventHandler<ObscuredEventArgs>(RootFrame_Obscured);
    RootFrame.Unobscured += new EventHandler(RootFrame_Unobscured);