ZOrder is not persistent

[Harry]

When refreshing a chart via F5, the selected ZOrder for the different indicator plots is not maintained but often inverted.

I would expect that the indicators on my charts will not change the ZOrder each time that I connect to a datafeed or refresh via F5.

Currently I need to use Shift + Mousewheel everytime that I have refreshed my chart in order to reestablish the selected ZOrder for each of the indicators.

[Harry]

Set.Zorder

In order to set the ZOrder, I am still using this.ZOrder = N, because SetZOrder(N) did not work.

For my indicators, it seems that NinjaTrader ignores the selected ZOrder altogether,

In State.Historical I have set

for Indicator A: this.ZOrder = -1;
for Indicator B: this.ZOrder = - 2;

I have used negative values for both, because I want them to plot behind the chart bars. Actually they do plot behind the chart bars, but indicator B always plots on top of indicator A, although it carries a smaller number for ZOrder.

Why is this?

[NinjaTrader_PaulH]

Hello Harry,

Thanks for your posts on this topic.

Do you have a sample indicator that I can use to test this and provide to development to demonstrate the issue?

Or, advise the code used as much as you can and I will try to recreate.

[Harry]

The issue with the ZOrder is not 100% reproducible, but it can be often observed. It is also linked to the loading time of an indicator.

The indicators causing problems have custom OnRender() sections that do not call base.OnRender(chartControl, chartScale).

Attached is an example:

-> The MultiMACross indicator is set to ZOrder = -1.
-> The Opening Range indicator is set to ZOrder = -5.

I have added those indicators to a new chart. My expectation was that the Opening Range indicator plots behind the MACross indicator, but in fact it plots on top of the MA Cross indicator.

When I refresh via F5, sometimes the Opening Range indicator plots behind and sometimes it plots above the other indicator. This happens without changing the settings. Sometimes it looks like a random event.

I do not wish to post the open source version of these indicators here, but willing to send them via e-mail, if you wish to check them.

[Harry]

Here is a link to a little video.

I am just selecting the chart and then refreshing via F5.

After the refresh the outcome is about random. You neve know which of the indicators will be in front and which one will be behind.

http://www.screencast.com/t/SbfpsGvM8Vx

[NinjaTrader_PaulH]

Hello Harry,

Thanks for your replies.

I will need to create a reproducible condition. Please send the sample indicators to PlatformSupport[at]NinjaTrader[dot]com Mark the subject Atten: Paul and please include a link to this thread for reference.

[Harry]

Hello Paul,

Thank you for your help.

I have sent you the two indicators for further investigation.

[NinjaTrader_PaulH]

Hello Harry,

Thanks for sending the indicators. I have recreated.
We will update this thread when we have further information.

[jmneto]

I am running into similar issue. Do we have any updates here?

Hi,
I am running into similar issue. Do we have any updates here?
Thanks in Advance

[NinjaTrader_PatrickH]

Hello jmneto,

Thank you for your post.

Please review the attached example for persisting the Z-Order through compiling and reload of NinjaScript.

Please let me know if you have any questions.

[jmneto]

From reading the code fragment below, and other information I found here it seems that one need to be constantly setting ZOrder to keep the desired ZOrder. Is that correct?

protected override void OnBarUpdate()
{
ZOrder = _SaveZOrder;
Print(ZOrder);
}

[NinjaTrader_PatrickH]

Hello jmneto,

Thank you for your response.

That is correct as we want to ensure the OnBarUpdate call sets the ZOrder to the saved value after the reload.

Please let me know if you have any questions.

[jmneto]

Thank you, what is the difference between setting ZOrder property directly and calling SetZOrder() as recommended in your docs https://ninjatrader.com/support/help...ightsub=zorder

[NinjaTrader_PatrickH]

Hello jmneto,

Thank you for your response.

The example I provided will save the ZOrder where as SetZOrder sets the ZOrder. ZOrder is the level it is at and SetZOrder is to set the order.

• SetZOrder: https://ninjatrader.com/support/help.../setzorder.htm
• ZOrder: https://ninjatrader.com/support/help...art_zorder.htm

Please let me know if you have any questions.