Why ChartBars is always null in Strategy Analyzer?

[Shai Samuel]

I am trying to change a few ChartBars properties during OnStateChange State.DataLoaded, and it seems like ChartBars is always set to null while in Strategy Analyzer.

Check this code, it is always returning "*** ChartBars==null").

Any ideas?

protected override void OnStateChange()
{
    if (State==State.DataLoaded)
    {        
        if (ChartBars!=null)
        {
            ChartBars.Properties.PlotExecutions = ChartExecutionStyle.MarkersOnly;
            ChartBars.Properties.IsStableSession = false;
            Print("OnStateChange DataLoaded PlotExecutions="+ChartBars.Properties.PlotExecutions+", IsStableSession="+ChartBars.Properties.IsStableSession);
        }
        else
            Print("*** ChartBars==null");
    }
}​

[QuantKey_Bruce]

There definitely should NOT be a ChartBars in Strategy Analyzer because no chart is being displayed. This is all in the documentation https://ninjatrader.com/support/help...?chartbars.htm - have you read through to see what ChartBars is?

[Shai Samuel]

Thank you Bruce. How can I avoid the missy text when displaying the Chart on the Strategy Analyzer?

[QuantKey_Bruce]

I don't think you can - maybe someone at NinjaTrader will shine some light on this but to my recollection the only thing that chart does is show the trades with their markers (I see that's one of the things you're trying to do there) - I don't think it can display indicators or text or anything of that sort.

Also, I don't know about setting ChartBars.Properties.IsStableSession = false during State.DataLoaded - at that point, the data is already loaded. That seems unwise. You might be able to change that setting during State.Configure but even then, I wouldn't recommend trying to change ChartBars - that's a construct that is only for visualization.

It seems like your question could be summed up as you want to only show the markers and not the associated text in the mini-chart that is shown in Strategy Analyzer. Perhaps NinjaTrader support can advise if that is possible.

[NinjaTrader_ChrisL]

Hello, thanks for writing in. Unfortunately, It is not possible because the strategy is not using that specific chart embedded in the strategy analyzer. I will submit a feature request to add in the Data Series properties so the chart markers can be adjusted through the strategy analyzer.