Best Practices Daily Timed Events

private Collection<Timer> _timers = new Collection<Timer>();
 
//I like accessing global vars like the above via Properties, so I will do the same in this example, here is a property to access that variable:
 
public Collection<Timer> Timers
{
     get
     {
           return _timers;
     }
     set
     {
          _timers = value;
     }
}
 
 
//Then, you have this method:
 
        private void SetupTimers()
        {
            Timers.Clear();
            
            DataTable dtScheduledTimes = // populate this datatable via your method to get the times
            for (int x = 0; x < dtScheduledTimes.Rows.Count; x ++)
            {
                DateTime scheduledTime = (DateTime)dtScheduledTimes.Rows[x]["ScheduledTime"];
                Timer timer = new Timer();
                TimeSpan timeUntilExecute = scheduledTime.Subtract(DateTime.Now);
                if (timeUntilExecute.Ticks <= 0)
                     timeUntilExecute.AddDays(1).Subtract(DateTime.Now);
                timer.Interval = timeUntilExecute.TotalMilliseconds;
                timer.Tag = scheduledTime;
                timer.Start();
                timer.Tick += new EventHandler(timer_Tick);
                Timers.Add(timer);
            }
            
//Then you have the tick event handler for the timers when the tick event is fired:
 
           private void timer_Tick(object sender, EventArgs e)
           {
                // reconfigure the timer to tick at the next desired time only
                Timer timer = (Timer)sender;
                DateTime scheduledTime = (DateTime)timer.Tag;
                TimeSpan timeUntilExecute = scheduledTime.Subtract(DateTime.Now);
                if (timeUntilExecute.Ticks <= 0)
                     timeUntilExecute.AddDays(1).Subtract(DateTime.Now);
                timer.Interval = timeUntilExecute.TotalMilliseconds;
                
               // execute code you want to execute here when the timer tick event is fired
 
               CallSomeMethod();
            }
 
// To get all this executing you would just call SetupTimers() when desired, such as when the app is first opened etc, and you would need a way to populate the datatable in the example with all the desired time schedules.  Other than that, the above code should work fine, as it does for me.

                                              

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