Trigger event using timer on a specific day and time

Question

I am using System.Timer to trigger an event. Currently I trigger it every 1 hour and check if it matches the configured value (day,time).

But it is possible to trigger this at a specific time? like suppose on Sunday at 12Am.

Windows Task Scheduler would be more appropriate but its not an option.

Thanks in advance

Solution

It isn't clear why you just wouldn't set the timer's Interval to the target date/time. There's a limit on the number of milliseconds, you can time up to 2^31 milliseconds, 27 days. You'll be good as long as you can stay in that range.

    private static void SetTimer(Timer timer, DateTime due) {
        var ts = due - DateTime.Now;
        timer.Interval = ts.TotalMilliseconds;
        timer.AutoReset = false;
        timer.Start();
    }

Comments

[fireBand]

would it be possible to set timer on DayOfWeek rather than the Date? Like Sunday at 12 Am or Tuesday at 1 Am? Thanks

[user1703401]

Sure, just use AddDays() to add the number of days between DayOfWeek and Now.DayOfWeek, casted to int. Add 7 if the value is negative.