Expose Public Class List

July 6th, 2010, 06:38 PM

Obviously my egotistical, narcissistic beliefs in my coding skills great exceed reality. So could somebody toss me a bone LOL.

I am trying to Expose the List created in the code to other Indicators and Strategies. The code seems to work fine within the indicator and am in fact using it. After spending a few weeks I still have not figured out how to expose it. I am guessing that I need something in the Properties Region and have tried many ideas but no success. Or maybe this is not possible.

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.Gui.Chart;
using System.Collections.Generic;
#endregion

// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
    //     Use Indicator Name as Prefix to Class Name
    public class htcSampleExposePublicList_SampleListClass
    {
        public int SampleInt; 
        public double SampleDouble;
        public string SampleString;
        public bool SampleBool;
    
        public htcSampleExposePublicList_SampleListClass(int SampleInt, double SampleDouble, string SampleString, bool SampleBool )
        {
            this.SampleInt = SampleInt;
            this.SampleDouble = SampleDouble;
            this.SampleString = SampleString;
            this.SampleBool = SampleBool;
        }
    }    
    

    [Description("Learn how to Expose a Publis Class List")]
    public class htcSampleExposePublicList : Indicator
    {
        #region Variables
        // User defined variables (add any user defined variables below)
        public List<htcSampleExposePublicList_SampleListClass> samplelistclass = new List<htcSampleExposePublicList_SampleListClass>();        
        
        #endregion


        protected override void Initialize()
        {
            Overlay                = false;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
            //  Criteria to Clear List
            if (Falling(SMA(20))) 
                samplelistclass.Clear();
            
            //  Criteria to Add to List
            if (Rising(SMA(20))) 
                samplelistclass.Add(new htcSampleExposePublicList_SampleListClass(0, SMA(10)[0], "SMA is Rising", true ));
                
        }

        #region Properties

            //  What is the Code to Expose "samplelistclass" to other Indicators and Stratagies?
        
        #endregion
    }
}

Or maybe there is another solution to the problem that I am not aware of. After all I am not aware of much!

Thanks

July 6th, 2010, 08:18 PM

See if these minor modifications to your posting help (I had to strip stuff you'll have to put back, it said my post was too long):

Code

#region Using declarations
...
#endregion
namespace NinjaTrader.Indicator
{
// Use Indicator Name as Prefix to Class Name
publicclass htcSampleExposePublicList_SampleListClass
{
   publicint SampleInt; 
   publicdouble SampleDouble;
   publicstring SampleString;
   publicbool SampleBool;
 
   public htcSampleExposePublicList_SampleListClass(int SampleInt, double SampleDouble, string SampleString, bool SampleBool )
   {
      this.SampleInt = SampleInt;
      this.SampleDouble = SampleDouble;
      this.SampleString = SampleString;
      this.SampleBool = SampleBool;
   }
} 
 
[Description("Learn how to Expose a Publis Class List")]
publicclass htcSampleExposePublicList : Indicator
{
#region Variables
   // User defined variables (add any user defined variables below)
   public List<htcSampleExposePublicList_SampleListClass> samplelistclass { 
      get { return samplelistclass; } 
      set { samplelistclass = value; }
   }
 
#endregion
　
   protectedoverridevoid Initialize()
   {
      samplelistclass = new List<htcSampleExposePublicList_SampleListClass>();
      Overlay = false;
   }
   ///<summary>
   /// Called on each bar update event (incoming tick)
   ///</summary>
   protectedoverridevoid OnBarUpdate()
   {
      // Criteria to Clear List
      if (Falling(SMA(20))) 
         samplelistclass.Clear();
 
      // Criteria to Add to List
      if (Rising(SMA(20))) 
         samplelistclass.Add(new htcSampleExposePublicList_SampleListClass(0, SMA(10)[0], "SMA is Rising", true ));
 
   }
#region Properties
// What is the Code to Expose "samplelistclass" to other Indicators and Stratagies?

#endregion
}
 
publicclass test {
   public test() {
      htcSampleExposePublicList test = new htcSampleExposePublicList();
      List<htcSampleExposePublicList_SampleListClass> list = test.samplelistclass;
   }
}
} 
#region NinjaScript generated code. Neither change nor remove.
...
#endregion

July 7th, 2010, 09:19 AM

Many thanks fluxsmith. Will give it try after the markets close today.

July 8th, 2010, 08:15 AM

No luck retrieving the information from the List.

Maybe I am going about this the wrong way. Here is the scenario that I am trying to accomplish:

Lets say that I have Exposed DataSeries, IntSeries, BoolSeries that are passing information to other Indicators. Now these Series are basically Empty or set to a value that indicates they are meaningless on 90% of the bars. Seems like a waste of computer resources to me. Therefore I was trying to use a List and then populate the List only when there exists meaningful information.

As an example think of Stochastics Bullishish Divergence on a 60 Minute Chart.
IntSeries : Initial Low Bar
DataSeries: Initial Low Price
DataSeries: Initial Low Indicator Value
IntSeries : Divergence Count
DataSeries: Divergence Low Price
DataSeries: Divergence Low Indicator Value

Using a bunch of Series I can access the 60 Minute Chart Divergence information on a 5 Minute chart. Price must make a Lower Low while keeping a Higher Stochastics Value off the Initial Low Bar on the 60 Minute Chart to create a Divergence Pattern.

Now I am thinking that is a waste of Series (Computer Resources) when most of the time the values are set to "0". Would I not be better off creating a List and having that List Exposed in a similar manner as any any Exposed Series?

Anyone have any suggestions.

January 6th, 2013, 05:36 PM

hi,

did you ever solve this ?

thanks

January 6th, 2013, 05:55 PM

Hi

did you ever manage to solve this?

thanks

Expose Public Class List

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Expose Public Class List