CODEWITHSUNDEEP
c#.nettimerschedule
Robert
Robert

Reputation: 527

Raise event in specified time

Can somebody give me a code, how to raise event when specified time is passed.

For example i have this times:

08:00 12:00 20:30 23:00

How can i subscribe to event which raising in these times?

Upvotes: 2

Views: 3440

Answers (4)

IvoTops
IvoTops

Reputation: 3531

use a System.Timers.Timer

Details on this can be found at MSDN.

when the event goes off, raise the event AND reprogram the timer to go off again for your next event.

Upvotes: 0

seldary
seldary

Reputation: 6256

Try Quartz.Net.
It can run whatever you need in specified times, one of which is the firing of an event.

Upvotes: 0

Tibi
Tibi

Reputation: 3875

The method I used for an application was to make a timer that fires every few minutes. When it gets closer to the target time (e.g. current time + interval > target time), the interval becomes smaller.

For that particular application, exact precision wasn't that important, so I didn't let the interval get smaller than 500 ms.

Finally, when you think you're close enough, you do the task you need to at that time.

Upvotes: 0

abatishchev
abatishchev

Reputation: 100248

Try the following approach:

DateTime target = ...
int interval = (int)(target - DateTime.Now).TotalMilliseconds;
var timer = new System.Timers.Timer(interval);
timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
timer.Enabled = true;

Upvotes: 3

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