NT 7 MA is broken and crashes NT

[oops!]

The ability to create your own column in MA vanished with NT 7.

OnBarUpdate seems not firing anymore.
RequiresBars = true; - crashes NT


using System;
using System.ComponentModel;

namespace NinjaTrader.MarketAnalyzer
{
[Description("")]
[Gui.Design.DisplayName(" ABC")]

public class VolatilityMa : Column
{
private int period = 14;

///<summary>
///</summary>
[Description("Numbers of bars used for calculations")]
[Category("Parameters")]
public int SMAPeriod
{
get { return period; }
set { period = Math.Max(1, value); }
}

protected override void Initialize()
{
RequiresBars = true;
}

protected override void OnBarUpdate()
{
Value = SMA(SMAPeriod)[0];
}

}
}The above code is stripped down to minimum and crashes NT

[NinjaTrader_Bertrand]

oops!, we will attempt reproducing here, however creating custom columns for the MA would not be supported and for proper working example please take a look into the default ones used (MyDocuments\NinjaTrader 7\bin\Custom\MarketAnalyzer).

Thanks,

[oops!]

Any feedback on the issue?

[zweistein]

I have a MA column with

protectedoverridevoid Initialize()
{
DataType = typeof(string);
RequiresBars = true;
ShowInTotalRow = false;


and it does not crash.

Try setting the DataType to string. It could be that other DataTypes could crash MA.

regards

andreas , www.zweisteintrading.eu

[oops!]

Any feedback on the issue?

I don't need string. I need double

[zweistein]

Don't worry,

I will not reply any more to threads

andreas

[oops!]

Don't worry,

I will not reply any more to threads

andreas

What does that mean? Have I offended you in someway?

[NinjaTrader_Bertrand]

oops!, sorry for the late update - works for me without issues here when formatting the return as string -

protected override string Format(double value)
{
return Instrument.MasterInstrument.FormatPrice(value);
}

[oops!]

I am still having issues: the trace file entry:

2010-12-28 06:52:41:663 in OnUnhandledApplicationException
2010-12-28 06:52:41:671 ********* exception trapped *********
2010-12-28 06:52:41:671 Index and length must refer to a location within the string.
Parameter name: length
2010-12-28 06:52:41:671 System.ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length
at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy)
at NinjaTrader.MarketAnalyzer.UI.MarketAnalyzerContro l.LoadBarsInWorkerThread(Object state)
at System.Threading._ThreadPoolWaitCallback.WaitCallb ack_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state)
at System.Threading._ThreadPoolWaitCallback.PerformWa itCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
at System.Threading._ThreadPoolWaitCallback.PerformWa itCallback(Object state)
2010-12-28 06:52:41:896 in OnUnhandledApplicationException
2010-12-28 06:52:41:897 ********* exception trapped *********
2010-12-28 06:52:41:897 Index and length must refer to a location within the string.
Parameter name: length
2010-12-28 06:52:41:897 System.ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length
at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy)
at NinjaTrader.MarketAnalyzer.UI.MarketAnalyzerContro l.LoadBarsInWorkerThread(Object state)
at System.Threading._ThreadPoolWaitCallback.WaitCallb ack_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state)
at System.Threading._ThreadPoolWaitCallback.PerformWa itCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
at System.Threading._ThreadPoolWaitCallback.PerformWa itCallback(Object state)

[NinjaTrader_Bertrand]

I'm not sure I follow you - are you able to reproduce this issue? If yes, which exact code would you use?

Thanks

[oops!]

I'm not sure I follow you - are you able to reproduce this issue? If yes, which exact code would you use?

Thanks

The attached code crashes every single time
Thanks for looking into the issue.

[NinjaTrader_Bertrand]

Unfortunately I'm not able to reproduce the issue here on my end - which NT7 version (R1?) are you working with?