how about this?**NT** Error on calling 'OnBarUpdate' method for strategy 'alaoluo/41d

[silverness]

when I run a strategy....the output window print this

**NT** Enabling NinjaScript strategy 'alaoluo/41d23067d6584cd3a48fa605947334a2' : On starting a real-time strategy - StrategySync=WaitUntilFlat SyncAccountPosition=False EntryHandling=AllEntries EntriesPerDirection=1 StopTargetHandling=PerEntryExecution ErrorHandling=StopStrategyCancelOrdersClosePositio ns ExitOnClose=True/ triggering 30 before close Set order quantity by=Strategy ConnectionLossHandling=KeepRunning DisconnectDelaySeconds=10 CancelEntryOrdersOnDisable=False CancelExitOrdersOnDisable=True MaxRestarts=4 in 5 minutes
**NT** Error on calling 'OnBarUpdate' method for strategy 'alaoluo/41d23067d6584cd3a48fa605947334a2': 'Object reference not set to an instance of an object'

[silverness]

Anyone Can help me, I will apretiate very much!

[silverness]

And here is my Ninja Code:

#region Using declarations
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.Indicator;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Strategy;
#endregion
// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
/// <summary>
/// Enter the description of your strategy here
/// </summary>
[Description("Enter the description of your strategy here")]
public class alaoluo : Strategy
{
#region Variables
// Wizard generated variables
// User defined variables (add any user defined variables below)
#endregion
/// <summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
/// </summary>
#region Variables
private DateTimeSeries myDateTimeSeries; // Define a DateTimeSeries variable
#endregion
protected override void Initialize()
{
Add("RL",PeriodType.Minute,1);
Print("data is ready");
CalculateOnBarClose = true;
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{

{


if (BarsInProgress==0 || BarsInProgress==1 )
{
if(CurrentBar < 1)
return;
if ((ToTime(Time[0]) <= ToTime(9, 30, 0)) &&( ToTime(Time[0]) >= ToTime(9, 35, 0))
&& (CurrentDayOHL().CurrentHigh[0]-CurrentDayOHL().CurrentLow[0]<=2))
{
Print("symbol"+Instrument.FullName+currentdailyran ge is"
+(CurrentDayOHL().CurrentHigh[0]-CurrentDayOHL().CurrentLow[0]));
}




if ((ToTime(Time[0]) <= ToTime(10, 30, 0)) && (ToTime(Time[0]) >= ToTime(9, 35, 0))
&& (CurrentDayOHL().CurrentOpen[0]>Bars.GetDayBar(1).Close+0.5)
&& (Close[0]-CurrentDayOHL().CurrentOpen[0]<0)
&& (CurrentDayOHL().CurrentLow[0]-Bars.GetDayBar(1).Close>0))
{
int lowestbarnum1=LowestBar(Close,ToTime(Time[0])-ToTime(9, 30, 0));
int highestbarnum1=HighestBar(Close,ToTime(Time[0])-lowestbarnum1);

if ( (Math.Abs(Close[LowestBar(Close,highestbarnum1)]-
Close[lowestbarnum1])<=0.05)
&& (Close[highestbarnum1]-Close[lowestbarnum1]>=0.2)
&& (Close[0]>Close[lowestbarnum1]) && (Close[0]<Close[highestbarnum1]))

Print("symbol"+Instrument.FullName+"NOW is available");
}

}
}
}
#region Properties
#endregion
}
}










Best wishes

[silverness]

hi ....I have resolve this problem
because bars object should be new before use it
while this another question
**NT** Error on calling 'OnBarUpdate' method for strategy 'alaoluo/270d83c26bbc4aaba31b678537911df4': You are accessing an index with a value that is invalid since its out of range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.

I am sure array index >=0 and I want to backtest multiinstrument strategy...
pls help me.

another question:
when a reload a charts with 3000 bars,I run the multiinstruments strategy...it load another instrument data as 3000 bars or not?


best wishes,thanks.

[silverness]

the key Code as mentioned above is this:

double initvalue=Close[ToTime(Time[0])-ToTime(9, 35, 0)]-Close[ToTime(Time[0])-ToTime(9, 31, 0)];

[NinjaTrader_Bertrand]

silverness, likely you run into this issue here - http://www.ninjatrader.com/support/f...ead.php?t=3170

For a MultiSeries script the check needs to be expanded to cover any series you use.

[silverness]

thanks a lot!