Questions

Hi,

in a MVVM scenario, I bind the AnimatedVisibleRange to a property in the view model.

 <s:SciChartSurface SeriesSource="{Binding ChartSeries}">
   <s:SciChartSurface.XAxis>
     <s:NumericAxis AxisTitle="x" AnimatedVisibleRange="{Binding XVisibleRange, Mode=TwoWay}" AutoRange="Never" />
   </s:SciChartSurface.XAxis>
   <s:SciChartSurface.YAxis>
     <s:NumericAxis AxisTitle="y" AnimatedVisibleRange="{Binding YVisibleRange, Mode=TwoWay}" AutoRange="Never" />
   </s:SciChartSurface.YAxis>
   <s:SciChartSurface.ChartModifier>
     <s:ModifierGroup>
       <s:MouseWheelZoomModifier IsEnabled="True" XyDirection="XDirection"/>
     </s:ModifierGroup>
   </s:SciChartSurface.ChartModifier>
 </s:SciChartSurface>

Setting the XVisibleRange property in the view model smoothly animates the view. However, when I zoom in the chart with the mouse wheel, the view model property receives no updates (so the XVisibleRange property in the view model always stays on the value initially set by the view model).

The same thing works when I bind he VisibleRange instead of the AnimatedVisibleRange, i.e. in that case I get an update of the view model property on every mouse wheel zoom.

Is this intendend, or a bug? Building a workaround would require additional bindings, which I would like to avoid.

Best regards,

Andree