How set historical values outside core event methods ?

[cls71]

Hello,

I need to assign new historical data to my Plots outside of the core event methods (such as a custom button click).
I can use Series<T>.GetValueAt(barIndex) to read historical values, but I don't find any method to set historical values.
If I try to assign it directly, an exception is thrown.

protected override void OnBarUpdate()
{
   MyCalcValues[0] = Close[0] * 2.0;
   if ( CurrentBar > 1 )
      MyCalcValues[1] = Close[0];      // it works fine
}

private void ExampleButtonClick(object sender, RoutedEventArgs e)
{
   // This method is executed when the user clicks on a button 
   MyCalcValues[1] = Close[0] * 3.0;     // it throws exception
}

Thanks.

[NinjaTrader_Jesse]

Hello,

Thank you for the question.

Does this occur while using GetValueAt(barIndex) in the event handler rather than Close[0] for getting the value to assign? It would be expected that Close[0] used in its current context may not work, but GetValueAt(barIndex) should be correct for anything outside of OnBarUpdate.

If that does not assist, you may try using a custom event:

TriggerCustomEvent(o => {
     MyCalcValues[1] = Close[0] * 3.0; 
}, 0, null);

I would suggest the GetValueAt if that works over the custom event to reduce overhead.

http://ninjatrader.com/support/helpGuides/nt8/en-us/triggercustomevent.htm?zoom_highlightsub=customevent

Could you please test these items, if this does not work, could you create a simple example that only demonstrates the exception for me to further review?

I look forward to being of further assistance.

[cls71]

Perfect ! Thanks very much.