when does initialize get called

[junkone]

i coded an indicator where the initialize method creates some db objects. when i added the indicator, it worked,
later i made some chagnse to the indicator and removed and added it again to market analyser, i started getting errors.
does the initialze get called again when i remove and add the same indicator.

[NinjaTrader_Bertrand]

Yes and it might even get called multiple times, if you add it fresh it's called once you select your custom indicator from the indicators enum to add to the column.

I would suggest you move your DB object creation logic to the first OnBarUpdate() call and retry.