Load indicator only once per chart window

[sidlercom80]

Hello, how can I prevent the indicator from being added twice in my indicator code? I want it to be possible to load the indicator only once per chart window.

[NinjaTrader_PaulH]

Hello sidlercom80,

Thanks for your post.

Can you clarify if this is a strategy that is adding the indicator?

If not can you clarify the steps to recreate?

[sidlercom80]

Hello _PaulH, it's a manually added indicator. I would like to prevent an indicator from being manually added to a chart several times. Can I do this via an attribute or similar?

[NinjaTrader_PaulH]

Hello sidlercom80,

Thanks for your reply.

There would be no way to prevent the indicator from being selected and added to the chart.

The best we can suggest is to loop through ChartControl.Indicators in State.DataLoaded, and flip a bool that the indicator was already added, so that instance does nothing but informs the user it is a duplicate.