Cancelling order

[SebastianV]

Using the following strategy, the CancelOrder() method generate this error: "**NT** Error on calling 'OnBarUpdate' method for strategy 'Strategy02/80f3562106154d488f4581631b589818': Object reference not set to an instance of an object."

Is there something that I am missing?

Thanks,
Sebastian

#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.Strategy;
#endregion


namespace NinjaTrader.Strategy
{
    
    
    [Description("Strategy02")]
    public class Strategy02 : Strategy
    {
        #region Variables
        private int        fast    = 10;
        private int        slow    = 25;
        
        private IOrder myEntryLongOrder = null;
        private int barNumberOfLongOrder = 0;
        
        
        #endregion

        
        protected override void Initialize()
        {
            SMA(Fast).Plots[0].Pen.Color = Color.Orange;
            SMA(Slow).Plots[0].Pen.Color = Color.Green;

            Add(SMA(Fast));
            Add(SMA(Slow));

            CalculateOnBarClose    = true;
        }

        
        protected override void OnBarUpdate()
        {
            if (CrossAbove(SMA(Fast), SMA(Slow), 1) && myEntryLongOrder == null) {
                    myEntryLongOrder = EnterLongLimit(0, true, 1, Low[0], "Long Entry");
                    barNumberOfLongOrder = CurrentBar;
                }
            
            if (CurrentBar > barNumberOfLongOrder + 5){
                CancelOrder(myEntryLongOrder);
            }
            
        }
        
        
        protected override void OnOrderUpdate(IOrder order)
        {
            if (myEntryLongOrder != null && myEntryLongOrder == order){
                Print(order.ToString());
                
                if (order.OrderState == OrderState.Cancelled){
                    myEntryLongOrder = null;
                }
            }
        }
        
        
        

        #region Properties
        /// <summary>
        /// </summary>
        [Description("Period for fast MA")]
        [GridCategory("Parameters")]
        public int Fast
        {
            get { return fast; }
            set { fast = Math.Max(1, value); }
        }

        /// <summary>
        /// </summary>
        [Description("Period for slow MA")]
        [GridCategory("Parameters")]
        public int Slow
        {
            get { return slow; }
            set { slow = Math.Max(1, value); }
        }
        #endregion
    }
}

[NinjaTrader_ZacharyG]

Hello Sebastian,

Thank you for writing in.

Please check if myEntryLongOrder is not null before trying to cancel it.

Please take a look at this link on our support forum on checking for null references: http://ninjatrader.com/support/forum...44&postcount=1

Please, let us know if we may be of further assistance.