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yes, in general autoincrement is two distinct operations; even if the CPU may have an instruction to do all of it, if the language (and hence the compiler) does not tell you the autoincrement is guaranteed to be atomic, then you must play it safe and treat it as a read and a write, with a possible thread switch in between (and on multi-core another core intervening would also create havoc). There isn't a keyword that will save you, not...

May be the OP does not know what he/she wants. That is why I suggested console app + Task schduler will be a better candidate than a Windows Service. Windows Service is NOT designed to act like a task scheduler.

<DevilsAdvocate>The OnStart could spawn off a Thread that Sleeps and the OnStop could Abort that Thread.</DevilsAdvocate>

I think your problem is that you want to change the value of an entry by typing over it. The problem being that once you start typing you loose any reference to the item you want to change. Perhaps an option would be to handle to OnEnter event and store the selected index, then when you detect the 'Enter' key you can use that index to change the value of the correct item. something like... int currentIndex = -1; void OnEnter( object...

bekzod009 wrote: Thanks And what is your problem?

No.. It wont be. You need to use any Javascript calendar..

Have you tried setting the selected index ?

buy the real version.

That one belongs exclusive to VB language

That is the "result" regardless of the option chosen. If not in this course, somewhere later on.