How to let Timer skip tick if the previous thread is still busy

Question

I created a windows service, that is supposed to check a certain table in the db for new rows every 60 seconds. For every new row that was added, I need to do some heavy pro

Answer 1

I recommend you don't let the timer tick at all while its processing.

Set the Timers AutoReset to false. And start it at the end. Here's a full answer you might be interested in Needed: A Windows Service That Executes Jobs from a Job Queue in a DB; Wanted: Example Code