Bar Timer with Customizable DataSeries for use in other Indicators/Strategies

[zeller4]

Good Afternoon,
I downloaded the BarTimerCounter indi from the EcoSystem link provided by

https://forum.ninjatrader.com/member/96912-ninjatrader_manfred

. I haven't tried that file but previously modified the BarTimer (attached below).
I'm attempting to create an alert that I can use in other files by assigning a bool or dataseries if the time counts to below 15 seconds on a 1-minute chart.
Partial code here:

else if (BarsPeriod.Value == 1)
                {
                    if (barTimeLeft.Minutes < 1 && barTimeLeft.Seconds < 16)
                    {
                        if (!alerted15sec && SoundOn) PlaySound(NinjaTrader.Core.Globals.InstallDir + @"\sounds\boathorn.wav");//new
                            alerted15sec = true;

                        _lessThan15Sec[0] = 1;
                    }
                    else
                    {
                        _lessThan15Sec[0] = 0;
                        alerted15sec = false;

                    }
                }​

It works as a DataSeries on my modified BarTimerv00 file but I'm trying unsuccessfully to get the other linking indicator attached using:

private BarTimerv00 btB0;
//and
btB0 = BarTimerv00(Inputs[0]);
//and
​double btB0ltsec = btB0.LessThan15Sec.IsValidDataPoint(0) ? btB0.LessThan15Sec[0] : 0;
            ​

Any thoughts or suggestions for this (or the parent script file)?

[NinjaTrader_ChelseaB]

Hello zeller4,

Is a series necessary?

Is this just a bool you want to set? If so, you could use a public bool (with the Browesable(false) attribute).

With a timer and a series you would need to use TriggerCustomEvent().

https://ninjatrader.com/support/helpGuides/nt8/triggercustomevent.htm

https://ninjatrader.com/support/forum/showthread.php?p=496445#post496445

And if calling from a host, it would likely be necessary to call .Update() on the indicator first.

https://ninjatrader.com/support/helpGuides/nt8/update.htm

Note, this would not work in historical data.

[zeller4]

Hi Chelsea,
Thanks for your reply and I will look at what you posted to try out later this evening.

In the meantime, I modified the sample time filter strategy with my inputs. See attached.
error message I receive:

Strategy 'SampleTimeFilterv00': Error on calling 'OnBarUpdate' method on bar 20: Index was outside the bounds of the array.

i thought by adding

if (CurrentBar < BarsRequiredToTrade)
            {

                return;
            }
            ​

I could resolve this common problem I run into. Please help towards a solution so I can learn for this and future projects. Thank you.

[NinjaTrader_ChelseaB]

Hello zeller4,

Just to confirm, my previous suggestions were not helpful?

You have testing setting a bool instead of a series?

You are calling .Update() on the indicator first?

The Timer is calling TriggerCustomEvent() before working any a series related objects?

What is the specific line of code causing the error?

[zeller4]

Hello Chelsea,
Thanks for taking time with this.
I read through your code on TriggerCustomEvent. If I understand correctly, the ForceRefresh() is doing the update? Or is there another way to do update? Normally, I do it in the properties section for the dataSeries but I didn't see you needed that.

I will try to place my "rules" in the myTimer section /CustomMethod section.
I'll let you know how it goes.

[NinjaTrader_ChelseaB]

Hello zeller4,

No, ForceRefresh() is used when doing something in OnRender() and you need to trigger a render pass.

https://ninjatrader.com/support/helpGuides/nt8/forcerefresh.htm

This is not related at all to synchronizing series before accessing them.