DrawingTool + MarketDepth

[cls71]

Hello,

the subscription to marketdepth events doesn't work well.

The event handler method to the Update event is executed only once at starting. Then the books are filled correctly. However, the event handler is not executed any more.

You can test the issue with attached codes.

Thanks.

[NinjaTrader_Jesse]

Hello,

Thank you for the question.

I do see that in this example this is not working and would be because you have created a new MarketDepth<MarketDepthRow> and subscribed to that.

The drawing tool would be able to see the Instrument and would already have access to its subscriptions.

One way to access this data from the drawing tool would be to use:

AttachedTo.Instrument.MarketData
or 
AttachedTo.Instrument.MarketData.Ask

I tested calling this in a drawing tools OnRender which I can prints the values. This would not need a subscription in this case as it is already subscribed at the instrument level, once the instrument is updated and calls OnRender the drawing tool would be updated as well.

I look forward to being of further assistance.