Alert ID

[reach4thelasers]

Quick Question about AlertCallback....

The docs at http://ninjatrader.com/support/helpG...rtcallback.htm require a "unique" id.

How unique does this need to be? I want an alert to run on multiple timeframes and instruments.

Do I need to do something like:


var alertId = Instrument.Name + BarsPeriod.ToString() + "_MyAlertName"

or is it sufficient to just use "MyAlertName"?

[NinjaTrader_AlanP]

Hello reach4thelasers,

Thank you for writing in.

The ID should be unique enough that no other calls contain the same ID, even if its run on a different instrument/timeframe within a different indicators.

“MyAlertName” would cause issues, and you would be better amending the ID name with a BarsPeriod and instrument name, as you suggested.

Please let us know if you need further assistance.

[reach4thelasers]

Thanks Alan. I went with GetHashCode().ToString() which is unique for every running Indicator instance.

It might make sense to append the hashcode automatically.... under-the-hood - I can't think of a use-case for having instances of the same indicator running on different timeframes/instruments re-arming each other's alerts.... only lots and lots of problems!!

At the very least the docs should be clarified on this point.

Thanks for getting back to me.

[NinjaTrader_AlanP]

Hello reach4thelasers,

I have passed your suggestion on to development.

Please let us know if you need further assistance.