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What is the correct Dispatcher to update Plot objects

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    What is the correct Dispatcher to update Plot objects

    I want to update my Plot objects periodically from a background Task.
    I am trying to use the ChartControl.Dispatcher from that background Task but that doesn't seem to have any effect on the chart.

    Code:
    ChartControl.Dispatcher.InvokeAsync((Action)(() => {
                             
        PlotTop[CurrentBar] = 10.0;
    
    
    }));
    What is the correct Dispatcher to use?
    Last edited by bartrader; 05-19-2018, 01:00 AM.

    #2
    Have you tried doing a chart refresh after you update the plot values?

    Comment


      #3
      Tried it but no effect.

      Comment


        #4
        Hello bartrader,

        Thank you for your note.

        Is the background task within the script which is applied to the chart?

        Would you be able to provide a simple sample which demonstrates what you're attempting to do?

        I look forward to your reply.
        Alan P.NinjaTrader Customer Service

        Comment


          #5
          Hello bartrader,

          Have you tried..

          Whenever you update UI elements from a thread other than the main thread, you need to use:

          this.Dispatcher.Invoke(() =>
          {
          // your code here
          });

          If you need needed to return an object back from the other thread, use myControlDispatcher.Invoke<object>(() => myControl.DataContext),
          where DataContext is the object being returned.

          Just a thought. Hope it helps.

          Comment

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