Bar price collections in GetMinMaxValues()

[windcatcher]

I am trying to get the values of High[0] and Low[0] in GetMinMaxValues() but an ArgumentOutOfRangeException is triggered. I have tried to get Open[0] and Close[0] but I couldn't either.

Is it possible to access these bar price collections in GetMinMaxValues()? I have noticed that CurrentBar is always -1 inside the scope of that function. Does anybody know why?

[NinjaTrader_Dierk]

>> Is it possible to access these bar price collections in GetMinMaxValues()?
No. Also: unfortunately this is beyond the scope of what we provide support for.

[anachronist]

I am trying to get the values of High[0] and Low[0] in GetMinMaxValues() but an ArgumentOutOfRangeException is triggered. I have tried to get Open[0] and Close[0] but I couldn't either.

Is it possible to access these bar price collections in GetMinMaxValues()? I have noticed that CurrentBar is always -1 inside the scope of that function. Does anybody know why?

Notwithstanding the support guy's reply, there's nothing to prevent others from providing a more helpful answer. Here's an example I've seen that scans through highs and lows:

 
public override void GetMinMaxValues(ChartControl chartControl, ref double min, ref double max)
{
   base.GetMinMaxValues(chartControl, ref min, ref max);
 
   int bars = base.ChartControl.BarsPainted;
   Exception caughtException;
 
   while (bars >= 0) {  
      int index = base.ChartControl.LastBarPainted -base.ChartControl.BarsPainted + 1 + bars;
      if (base.ChartControl.ShowBarsRequired || ((index - base.Displacement) >= base.BarsRequired)) {
         try {
            double thisHigh =  dsHigh.Get(index);
            double thisLow =  dsLow.Get(index);
            if ((!double.IsNaN(thisHigh)) && (index>0)) {
               if (thisHigh>max) max=thisHigh;
               if (thisHigh<min) min=thisHigh; 
            }
            if ((!double.IsNaN(thisLow)) && (index>0)) {
               if (thisLow>max) max=thisLow;
               if (thisLow<min) min=thisLow; 
            }
         }
         catch (Exception exception) { caughtException=exception; }
      }
      bars--;
   }
}

Hope that helps.
-Alex