DrawText using OnMarketData

[suprsnipes]

Hi,

I'm trying to use DrawText with data calculated using OnMarketData which prints to the output screen correctly but doesn't seem to update via the DrawText method correctly and is somewhat delayed?

Any reason as to why this would be?

suprsnipes

[NinjaTrader_Bertrand]

Hi, yes we would expect this difference to be seen - would suggest to review this thread where the same issue was discussed - http://www.ninjatrader.com/support/f...d.php?p=284863

[suprsnipes]

I checked out the post but don't quite understand how to implement...

Actually, I found a way around this; the solution is to mimic the tricks in the BarTimer indicator. In essence, introduce a timer, trigger a custom event in the TimerEventProcessor() method, and then call
ChartControl.ChartPanel.Invalidate();
from within the custom event handler...

. The other suggestion is a .dll and not much help either. Are there any other posts that I can look at obtaining a solution for this?

[suprsnipes]

Actually after your suggestion I came across this...which seems to have made an improvement, thanks Bertrand.

Hello CuriProgrammer,

For ChartControl.Refresh() you may want to try to put this inside of your OnMarketData event. For example:

if (e.MarketDataType == MarketDataType.Bid){
BidPrices[0] = e.Price;
if(ChartControl != null) ChartControl.Refresh();
}


As for a supported method to do this you may use the a Plot and change the style to a Bar plot do something like the same for this. A good example is the "BuySellVolume" indicator that comes loaded inside of NinjaTrader.

Let me know if that works for you.

suprsnipes