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Syncfusion Feedback

Chart Trackball exception

Thread ID:





106394 Jan 3,2013 01:58 PM UTC Jan 7,2013 05:01 AM UTC WinRT 2
Tags: Chart
Tomasz Wisniewski
Asked On January 3, 2013 01:58 PM UTC

When I enable trackball in chart control and collection of points in chart is empty a get an exception:

Specified argument was out of the range of valid values.

   at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Syncfusion.UI.Xaml.Charts.ChartSeries.FindNearestChartPoint(Point point, Double& x, Double& y, Double& stackedYValue)
   at Syncfusion.UI.Xaml.Charts.ChartTrackBallBehavior.OnPointerPositionChanged(Point point)
   at Syncfusion.UI.Xaml.Charts.ChartTrackBallBehavior.OnPointerMoved(PointerRoutedEventArgs e)
   at Syncfusion.UI.Xaml.Charts.Chart.OnPointerMoved(PointerRoutedEventArgs e)


When I enter the page with chart control chart is still empty, because I have to read values from files and it takes a second. I guess you could add  condition to check this situation.

Tomasz Wisniewski
Replied On January 3, 2013 02:03 PM UTC

One more thing: it seems that even one point in chart is too less. We have to have at least 2 points in chart to get rid of exception.

Karthikeyan V [Syncfusion]
Replied On January 7, 2013 05:01 AM UTC

Hi Tomasz,


Thanks for using Syncfusion products.


We have analyzed the reported issue. We are able to reproduce the issue and we will fix this in our next beta release.


Please let us know, if you have any concerns.



Karthikeyan V.


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