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Map Zoom style Exception (second variation)


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If the Map zoom style is  enabled in conjunction with a radar, pie and possibly other such single series chart types, when the User selects the zoom area, the following exception is generated by the ChartFX dlls that is not trappable.

"Object reference not set to an instance of an object."

at ChartFX.WPF.ZoomArea.a(IPlotArea A_0, Point A_1, Point A_2, ZoomStyle A_3)

at ChartFX.WPF.ZoomArea.b(Object A_0, MouseButtonEventArgs A_1)

at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

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Unfortunately Zoom Map, Style and Scroll depend on manipulating the X and/or Y axes to handle zooming while retaining visibility of other items in the chart such as axis labels, titles, legend, etc.

Radar, Pie, Doughnut and other "non-axes" charts do not support these types of zoom, in these cases we would recommend you use the Zoom Magnifier feature.

We have fixed the exception thrown when the user selects the zoom area and this fix wil be available in our next hotfix which should be available in a day or two.


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