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[Solved] Chart improperly displaying > 200 points

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Joel asked on 19 Mar 2012, 07:38 PM

I have a chart which I use to display a single line which is broken up by null values and the drop gap behavior. It works fine up to 200 points, but when I add 201 points, it displays a single continuous line across the full length of the chart.

Here is my chart:

<telerik:RadChart x:Name="videoChart" BorderThickness="0" Background="Transparent" MaxHeight="20" VerticalAlignment="Center">

<telerik:RadChart.DefaultView>

<telerik:ChartDefaultView>

<telerik:ChartDefaultView.ChartArea>

<telerik:ChartArea Padding="0">

<telerik:ChartArea.AxisX>

<telerik:AxisX IsDateTime="True" AutoRange="False" Visibility="Collapsed"/>

</telerik:ChartArea.AxisX>

<telerik:ChartArea.AxisY>

<telerik:AxisY AutoRange="False" MinValue=".99999" MaxValue="1.00001" Visibility="Collapsed" StripLinesVisibility="Collapsed"/>

</telerik:ChartArea.AxisY>

</telerik:ChartArea>

</telerik:ChartDefaultView.ChartArea>

<telerik:ChartDefaultView.ChartLegend>

<telerik:ChartLegend Visibility="Collapsed"/>

</telerik:ChartDefaultView.ChartLegend>

<telerik:ChartDefaultView.ChartTitle>

<telerik:ChartTitle Visibility="Collapsed"/>

</telerik:ChartDefaultView.ChartTitle>

</telerik:ChartDefaultView>

</telerik:RadChart.DefaultView>

<telerik:RadChart.SeriesMappings>

<telerikCharting:SeriesMapping>

<telerikCharting:SeriesMapping.SeriesDefinition>

<telerikCharting:LineSeriesDefinition ShowItemLabels="False" ShowPointMarks="False" EmptyPointBehavior="Gap">

<telerikCharting:LineSeriesDefinition.Appearance>

<telerikCharting:SeriesAppearanceSettings StrokeThickness="10" Stroke="Green"/>

</telerikCharting:LineSeriesDefinition.Appearance>

</telerikCharting:LineSeriesDefinition>

</telerikCharting:SeriesMapping.SeriesDefinition>

<telerikCharting:ItemMapping FieldName="Value" DataPointMember="YValue"/>

<telerikCharting:ItemMapping FieldName="Date" DataPointMember="XValue"/>

</telerikCharting:SeriesMapping>

</telerik:RadChart.SeriesMappings>

</telerik:RadChart>

The data I'm putting into the chart doesn't seem to matter. As soon as I hit 201, I get a solid, unbroken bar.

Is there some kind of virtualization/averaging/etc going on? Can I turn that off?

The ChartView does not have a gap behavior yet, so I cannot use the ChartView.

[Solved] Chart improperly displaying &gt; 200 points

2 Answers, 1 is accepted

[Solved] Chart improperly displaying > 200 points