Re: Thread related design advice please

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Could I use two forms timers, one to handle the DB query and one to handle
the UI update ?

If I take this approach I would assume I would still need to perform some
thread safety around the saving and retrieving of records ?

ie Thread 1 updates retrieves DB records and saves them away in the 'queue',
thread two reads from the 'queue' at set intervals and updates the ui ?

.........confused......

Jon




"Bishman" <jonathan.bishop@xxxxxxxxxxxxxx> wrote in message
news:eAHUBxn1GHA.1588@xxxxxxxxxxxxxxxxxxxxxxx
Hi,

I have a form application that needs to query a DB at a set timed interval
and then refresh the form with values received from the DB. Simple enough.

My design releated questions are ....

Should I create a worker thread that encapsulates a timer, (which I
believe will also create a seperate thread when the timer fires) , or
should I create a timer that creates a new thread when it fires ? Or
neither ?

Which sort of timer should I use. "System.Timers.Timer" or
"System.Windows.Forms.Timer"

I was going to 'place' the results of the DB query into a queue of some
sort that can then be retrieved at a set interval ( another timer ? ) and
display them on the form. How do I make this queue threadsafe ?

Some general design pointers would be appreciated.

Thanks.
Jon.



.

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