Error account selection from indicator to strategy

[tradingnasdaqprueba]

Hello NinjaTrader Team,

I am trying to incorporate an indicator into my strategy that copies orders from a master account to other accounts. I would like to be able to call this indicator from within the strategy and select the accounts.

I have attempted to implement this in various ways, but I always encounter the same error: "Error on getting value for property for NinjaScript: Object reference not set to an instance of an object."





I want to be able to access the properties of the indicator from my strategy and select the master account and the other accounts to copy (up to 9 accounts). I believe the issue stems from the null reference of the indicator, which is causing the error since initially no account is selected.




Is there any way to resolve this error?



i attach the indicator, also here the code I made:

public class PRUEBAS : Strategy
    {
        

        #region Indicators

        private NinjaTrader.NinjaScript.Indicators.TRADINGNASDAQ.SimpleTradeCopier ReplicatorTN1;
        
        #endregion

        
        protected override void OnStateChange()
        {

            if (State == State.SetDefaults)
            {
                ****CODE****
                
            }
                    
            #region Configure Indicators
            
            else if (State == State.Configure)
            {
                ****CODE****
            }
            
            else if (State == State.DataLoaded)
            {                                
               ****CODE****
            }
            
        protected override void OnBarUpdate()
        {
            Cuenta_Master = SimpleTradeCopier.MasterAccount_name;
            Cuenta_1 = SimpleTradeCopier.Accountname_1;
            Cuenta_2 = SimpleTradeCopier.Accountname_2;
            Cuenta_3 = SimpleTradeCopier.Accountname_3;
            Cuenta_4 = SimpleTradeCopier.Accountname_4;
            Cuenta_5 = SimpleTradeCopier.Accountname_5;
            Cuenta_6 = SimpleTradeCopier.Accountname_6;
            Cuenta_7 = SimpleTradeCopier.Accountname_7;
            Cuenta_8 = SimpleTradeCopier.Accountname_8;
            Cuenta_9 = SimpleTradeCopier.Accountname_9;
            



        }
        
        #region Properties


        #region 10. Replicator / Replicadora
        
        [RefreshProperties(RefreshProperties.All)]
        [Display(Name="Active Replicator / Activar Replicadora", Description="Determine if Replicator is active / Determina si Replicadora está activo.", Order=1, GroupName="10. Replicator / Replicadora")]
        public bool Replicator
        { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="Copy from this Account ",                                 Order=2, GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_Master { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 1",                                             Order=3, GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_1 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 2",                                             Order=4,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_2 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 3",                                             Order=5,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_3 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 4",                                             Order=6,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_4 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 5",                                             Order=7,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_5 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 6",                                             Order=8,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_6 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 7",                                             Order=9,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_7 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 8",                                             Order=10,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_8 { get; set; }
        
        [NinjaScriptProperty]
        [Display(Name="To Account 9",                                             Order=11,  GroupName="10. Replicator / Replicadora")]
        [TypeConverter(typeof(NinjaTrader.NinjaScript.AccountNameConverter))]
        public string Cuenta_9 { get; set; }

        #endregion​

[NinjaTrader_Gaby]

Hello tradingnasdaqprueba,

Thank you for your post.

I believe the issue stems from the null reference of the indicator, which is causing the error since initially no account is selected.

Can you confirm that these are the exact lines of code causing the object reference error by testing?

You can confirm by commenting these lines out, then testing if you are still getting the error. Uncomment the lines, then see if the error returns.

Checking for Null References - https://ninjatrader.com/support/help...references.htm