Error CS0234

[Chilectro29]

Hello community, I hope you can give me a hand, I don't know what to do anymore, I have this code for an indicator that I have been preparing but when I compile it I get error CS0234, "The type or name of the namespace "OrderBookIndicator" is not It exists in the namespace NinjaTrader.NinjaScript.Indicator, I hope someone can please give me a hand.

Thank you very much for your attention




region Using declarations

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.DrawingTools;
using NinjaTrader.Custom.Indicators;
using NinjaTrader.NinjaScript.Indicators;
using NinjaTrader.NinjaScript.AddOns.SightEngine;
#endregion

namespace NinjaTrader.Custom.Indicators
{
public class OrderBookIndicator : Indicator
{
private readonly int _period;
private readonly decimal _valueAreaHigh;
private readonly decimal _valueAreaLow;
private readonly decimal _pointOfControl;

public OrderBookIndicator(int period, decimal valueAreaHigh, decimal valueAreaLow, decimal pointOfControl)
{
_period = period;
_valueAreaHigh = valueAreaHigh;
_valueAreaLow = valueAreaLow;
_pointOfControl = pointOfControl;

AddPlot(Brushes.Green, "ArrowUp");
AddPlot(Brushes.Red, "ArrowDown");
}

protected override void OnBarUpdate()
{
var orderBook = GetCurrentBidOrderBook();

var prices = orderBook.Select(x => x.Price).ToList();
var volumes = orderBook.Select(x => x.Quantity).ToList();

var valueArea = new ValueArea(prices, volumes, _period);

var result = valueArea.Value > _valueAreaHigh ? 1 :
valueArea.Value < _valueAreaLow ? -1 :
Close[0] > _pointOfControl ? 1 :
Close[0] < _pointOfControl ? -1 :
0;

if (result == 1)
{
PlotBrushes[0][0] = Brushes.Green;
PlotValues[0][0] = Low[0];
PlotBrushes[1][0] = Brushes.Transparent;
PlotValues[1][0] = double.NaN;
}
else if (result == -1)
{
PlotBrushes[0][0] = Brushes.Transparent;
PlotValues[0][0] = double.NaN;
PlotBrushes[1][0] = Brushes.Red;
PlotValues[1][0] = High[0];
}
else
{
PlotBrushes[0][0] = Brushes.Transparent;
PlotValues[0][0] = double.NaN;
PlotBrushes[1][0] = Brushes.Transparent;
PlotValues[1][0] = double.NaN;
}
}

private IReadOnlyList<OrderBookEntry> GetCurrentBidOrderBook()
{
var orderBookEntries = new List<OrderBookEntry>();

for (var i = 0; i < Depth.Bid.Count; i++)
{
var price = Depth.Bid[i].Price;
var quantity = Depth.Bid[i].Size;

orderBookEntries.Add(new OrderBookEntry(price, quantity));
}

return orderBookEntries.AsReadOnly();
}
}

public class ValueArea
{
private readonly int _period;

public ValueArea(IReadOnlyList<decimal> prices, IReadOnlyList<decimal> volumes, int period)
{
_period = period;

var volumeSum = volumes.Sum();
var volumeThreshold = volumeSum * 0.7m;

var priceVolumePairs = prices.Zip(volumes, (price, volume) => new { Price = price, Volume = volume })
.OrderBy(x => x.Price)
.ToList();

var cumulativeVolume = 0m;
var valueAreaLowIndex = 0;
var valueAreaHighIndex = priceVolumePairs.Count - 1;

for (var i = 0; i < priceVolumePairs.Count; i++)
{
cumulativeVolume += priceVolumePairs[i].Volume;

if (cumulativeVolume >= volumeThreshold)
{
valueAreaLowIndex = i == 0 ? 0 : i - 1;
break;
}
}

cumulativeVolume = 0m;

for (var i = priceVolumePairs.Count - 1; i >= 0; i--)
{
cumulativeVolume += priceVolumePairs[i].Volume;

if (cumulativeVolume >= volumeThreshold)
{
valueAreaHighIndex = i == priceVolumePairs.Count - 1 ? priceVolumePairs.Count - 1 : i + 1;
break;
}
}

ValueAreaLowPrice = priceVolumePairs[valueAreaLowIndex].Price;
ValueAreaHighPrice = priceVolumePairs[valueAreaHighIndex].Price;
}

//public decimal Value => ValueAreaHighPrice - ValueAreaLowPrice;

public decimal ValueAreaLowPrice { get; set; }

public decimal ValueAreaHighPrice { get; set; }

public decimal Value
{

get
{
return ValueAreaHighPrice - ValueAreaLowPrice;
}
}
}

public class OrderBookEntry
{
public OrderBookEntry(decimal price, decimal quantity)
{
Price = price;
Quantity = quantity;
}

public decimal Price { get; }
public decimal Quantity { get; }
}
}

region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private OrderBookIndicator[] cacheOrderBookIndicator;
public OrderBookIndicator OrderBookIndicator()
{
return OrderBookIndicator(Input);
}

public OrderBookIndicator OrderBookIndicator(ISeries<double> input)
{
if (cacheOrderBookIndicator != null)
for (int idx = 0; idx < cacheOrderBookIndicator.Length; idx++)
if (cacheOrderBookIndicator[idx] != null && cacheOrderBookIndicator[idx].EqualsInput(input))
return cacheOrderBookIndicator[idx];
return CacheIndicator<OrderBookIndicator>(new OrderBookIndicator(), input, ref cacheOrderBookIndicator);
}
}
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.OrderBookIndicator OrderBookIndicator()
{
return indicator.OrderBookIndicator(Input);
}

public Indicators.OrderBookIndicator OrderBookIndicator(ISeries<double> input )
{
return indicator.OrderBookIndicator(input);
}
}
}

namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.OrderBookIndicator OrderBookIndicator()
{
return indicator.OrderBookIndicator(Input);
}

public Indicators.OrderBookIndicator OrderBookIndicator(ISeries<double> input )
{
return indicator.OrderBookIndicator(input);
}
}
}

#endregion

[NinjaTrader_Gaby]

Hello Chilectro29,

Thank you for your post.

It looks like this script wasn't made with NinjaScript. You are missing some necessary methods for a NinjaScript, such as OnStateChange(). Also, the constructor has overload parameters that are going to cause issues with the wrapper.

OnStateChange() - https://ninjatrader.com/support/help...tatechange.htm

OnBarUpdate() - https://ninjatrader.com/support/help...nbarupdate.htm

To get started with coding NinjaScript, please check out this forum post, which includes video guides:

https://forum.ninjatrader.com/forum/ninjatrader-8/indicator-development/97575-sample-scripts?p=786040#post7860400

If you have any further questions, please let me know.

[shodown888]

Hello NT Team and Community,

I am trying to implement a code for an indicator and received the same error CS0234. But instead for "Stroke" not existing in the namespace. Anyway I can fix this or is it an error on my side? I am running the latest version of NT8.

• The exact error message (CS0234 for Stroke).
• it involves a core NinjaTrader class (NinjaTrader.NinjaScript.DrawingTools.Stroke).
• error persists even after a clean reinstall of NinjaTrader 8.
• .Net 4.8 Repair Tool was ran just in case
• NT8 was ran as administrator
• Code works fine when removing those lines
• From what I understand the code uses the fully qualified name but I could be wrong?

TIA!