example of accountSelector.SelectionChanged for indicator?

[llanqui]

Hello,

is there an example of how to subscribe to the accountSelector.SelectionChanged event for an indicator?

the help system has one for an AddOnTab

and it has a base.Cleanup that would not be appropriate for an Indicator...

Thanks

[llanqui]

this will not compile

private void accountSelectorChanged (object sender, AccountSelector.SelectionChangedEvent e)
{}

this will compile but gets a run time error (from the help)

accountSelector = chartWindow.FindFirst("ChartTraderControlAccountSe lector") as AccountSelector;

accountSelector.SelectionChanged += (o, args) =>
{
};

[NinjaTrader_Gaby]

Hello llanqui,

Thank you for your post.

I am not aware of an indicator samples that use AccountSelector.SelectionChanged in the script.

However, as it says in the sample code on the Account Selector help guide page, the code for the account selector can be carried over to any NinjaScript object you may be working on.

Take a look at the AddOnFramework script which demonstrates using AccountSelector.SelectionChanged:

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

Please take a look at the sample code which demonstrates how to properly implement the AccountSelector:

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

If you have any further questions, please let us know.

[llanqui]

from the help system example...this won't compile in an indicator

// Find account selector

accountSelector = LogicalTreeHelper.FindLogicalNode(pageContent, "accountSelector") as AccountSelector;


this will..

accountSelector = chartWindow.FindFirst("ChartTraderControlAccountSe lector") as AccountSelector;


however, when loaded, I get this error

Indicator 'AAATM01': Error on calling 'OnStateChange' method: Value cannot be null.
Parameter name: element

apparently caused by this block

accountSelector.SelectionChanged += (o, args) =>
{
accountChanged = true;
Print ("AAATM01 Account CHANGED");
};

seems to me that the interface for the chartWindows AccountSelector is not the same as for the AddOn

which is why I need your help...or someone else in the thread

thankx

[NinjaTrader_Gaby]

Hello,

My colleague made me aware of an indicator sample we have that does use AccountSelector.SelectionChanged the script. It is attached below.

If you need any further assistance, please let us know.

[llanqui]

this will not compile

accountSelector = chartWindow.FindFirst("ChartTraderControlAccountSe lector") as AccountSelector; // compiles OK
accountSelector.SelectionChanged += accountSelectorChanged;


private void accountSelectorChanged (object sender, AccountSelector.SelectionChangedEvent e) // <<<<< not ok
{
}

I get this compile error

The type name 'SelectionChangedEvent' does not exist in the type 'NinjaTrader.Gui.Tools.AccountSelector'

so, what I really need is the interface for the event.......

[NinjaTrader_Gaby]

Hello,

This is demonstrated in the sample script I attached in my previous post, which I encourage you to take a look at for a complete picture of how to properly implement this within an indicator.

For your convenience, here it is below:

private void AccountSelector_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)

If you need any further assistance please let me know.

[llanqui]

Oh, I didn't that last post of yours...will check it..thx

[llanqui]

works good, thank you

[MisterTee]

Works well, thank you.
Question though: you want to add event handler for ExecutionUpdate (or OrderUPdate).

How do you handle unsubscribing from the old account ,and subscribing to the new account when they change?
I can't find an example, except for an addon here

https://ninjatrader.com/support/helpGuides/nt8/NT%20HelpGuide%20English.html?account_class.htm

But if you follow that logic, you just end up unsubscribing then resubscribing to the new account, without unsubscribing to the previously selected account.
(tested this with print statements).
thnkxs!!