Problems with VisibleRange YAxis and MVVM | Fast, Native Chart Controls for WPF, iOS, Android and Xamarin

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Hi,

I’m trying to set the visible ranges of the X and YAxis with MVVM.

My xaml code looks like this:

        &lt;!-- Define the SciChartSurface --&gt;
        &lt;SciChart:SciChartSurface Margin=&quot;5&quot; x:Name=&quot;sciChartSurface&quot;
                                  SciChart:ThemeManager.Theme=&quot;ExpressionDark&quot; DataSet=&quot;{Binding ChartData, Mode=TwoWay}&quot; ChartTitle=&quot;Lage rug vs romp&quot;
                                  AutoRangeOnStartup=&quot;False&quot;&gt;

            &lt;!-- Declare RenderableSeries --&gt;
            &lt;SciChart:SciChartSurface.RenderableSeries&gt;
                &lt;SciChart:XyScatterRenderableSeries ResamplingMode=&quot;None&quot;&gt;
                    &lt;SciChart:XyScatterRenderableSeries.PointMarkerTemplate&gt;
                        &lt;ControlTemplate&gt;
                            &lt;Ellipse Width=&quot;9&quot; Height=&quot;9&quot; Fill=&quot;SteelBlue&quot; Stroke=&quot;LightSteelBlue&quot; StrokeThickness=&quot;2&quot;/&gt;
                        &lt;/ControlTemplate&gt;
                    &lt;/SciChart:XyScatterRenderableSeries.PointMarkerTemplate&gt;
                &lt;/SciChart:XyScatterRenderableSeries&gt;
            &lt;/SciChart:SciChartSurface.RenderableSeries&gt;

            &lt;!-- Create an X Axis --&gt;
            &lt;SciChart:SciChartSurface.XAxis&gt;
                &lt;SciChart:NumericAxis DrawMinorTicks=&quot;False&quot; DrawMinorGridLines=&quot;False&quot; TextFormatting=&quot;0&quot; AxisTitle=&quot;Romp&quot; VisibleRange=&quot;{Binding Path=LowerBackXAxisVisibleRange}&quot; &gt;
                &lt;/SciChart:NumericAxis&gt;
            &lt;/SciChart:SciChartSurface.XAxis&gt;

            &lt;!-- Create a Y Axis --&gt;
            &lt;SciChart:SciChartSurface.YAxes&gt;
                &lt;SciChart:NumericAxis TickTextBrush=&quot;#FF4083B7&quot; AxisAlignment=&quot;Left&quot; AutoRange=&quot;False&quot; DrawMinorTicks=&quot;False&quot; DrawMinorGridLines=&quot;False&quot; TextFormatting=&quot;0&quot; AxisTitle=&quot;Lage rug&quot; VisibleRange=&quot;{Binding Path=LowerBackYAxisVisibleRange}&quot;&gt;
                &lt;/SciChart:NumericAxis&gt;
            &lt;/SciChart:SciChartSurface.YAxes&gt;
        &lt;/SciChart:SciChartSurface &gt;

This works fine for the XAxis, but not for the YAxis.
Any idea?

Thanks,
Egbert

WPF

EJansen asked 6 years ago

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Answers (1)

Hi Pat,

Could you try to specify Mode=”TwoWay” for binding explicitly and look if it helps? We couldn’t reproduce this issue on our side, but there were another similar requests and setting binding mode to TwoWay explicitly helped.

Best regards,
Yuriy

Yuriy answered 5 years ago

- pray
- 5 years ago
Yuriy, That solved my problem. Thanks. Pat

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