Simple data input form

[Davide999]

Hi,
I have an indicator that create a button on the toolbar of chart panel. I have already the method on click().
I want that when i press the button, ninjatrader show me a simple pop-up/form with a textbox and a datetimepicker and a button, so i can insert data and store it into variables when i click "OK" button on this last form.

Please, I have no idea how to do that, can you provide a generic sample?

Thanks

[NinjaTrader_BrandonH]

Hello Davide999,

Thanks for your post.

My colleague Chelsea has posted an example script you could view called SetIndicatorValueFromAddOnWindowExample_NT8 on the forum thread linked below that demonstrates returning information from an addon window to an indicator.

https://forum.ninjatrader.com/forum/historical-beta-archive/version-8-beta/85215-open-window-from-strategy?p=774548#post774548

[Davide999]

Hi,
I tried; all is fine and works but when i click OK button on the WPF forms to terminate the work, i obtain this error: " Error - calling thread cannot access this object because a different thread owns it"

Can you check my code and let me know? I tried multiple ways reading on this forum but i can't able to see where is the calling error (i'm using a dispatcher.invoke())

Thanks

[NinjaTrader_ChelseaB]

Hello Davide999,

To confirm, are you getting this error with the SetIndicatorValueFromAddOnWindowExample?

In your script, I am not seeing a dispatcher used to access the ChartControl in the RetreiveValues() method.

[Davide999]

Hello,
Yes; so everything is working but when i click OK on the windows form to update a txt files, i obtain this error. txt files is updated but on ninjatrader i get this error a few seconds before that the form is closing because the function is endend at this point.
How can i use a dipatcher to access the chart control?

thanks

[NinjaTrader_ChelseaB]

Hello Davide999,

Below is a link to the help guide with sample code.

https://ninjatrader.com/support/helpGuides/nt8/multi-threading.htm

ChartControl.Dispatcher.InvokeAsync(() =>
{
NinjaTrader.Gui.Tools.NTMessageBoxSimple.Show(Window.GetWindow(ChartControl.OwnerChart as DependencyObject),
"Date succesfully updated into file " + path, "UpdateStartDeltaDate", MessageBoxButton.OK, MessageBoxImage.Information);​
});