<telerikChart:RadCartesianChart x:Name="radChart" Margin="0,0,19,51"> <telerikChart:RadCartesianChart.Grid> <telerikChart:CartesianChartGrid MajorLinesVisibility="Y" TextOptions.TextHintingMode="Animated"/> </telerikChart:RadCartesianChart.Grid> <telerikChart:RadCartesianChart.Behaviors> <telerikChart:ChartPanAndZoomBehavior ZoomMode="Horizontal" PanMode="Horizontal"/> <telerikChart:ChartTrackBallBehavior ShowTrackInfo="True" ShowIntersectionPoints="True" TrackInfoUpdated="ChartTrackBallBehavior_TrackInfoUpdated_1"/> </telerikChart:RadCartesianChart.Behaviors> <telerikChart:RadCartesianChart.HorizontalAxis > <telerikChart:DateTimeContinuousAxis LabelFormat="H:mm
dd-MMM" LabelInterval="6" LabelFitMode="MultiLine" ZIndex="1"> <telerikChart:DateTimeContinuousAxis.MajorTickStyle> <Style TargetType="Rectangle"> <Setter Property="Fill" Value="#666666"/> <Setter Property="Margin" Value="0, -3, 0, 0"/> </Style> </telerikChart:DateTimeContinuousAxis.MajorTickStyle> </telerikChart:DateTimeContinuousAxis> </telerikChart:RadCartesianChart.HorizontalAxis> <telerikChart:RadCartesianChart.VerticalAxis> <telerikChart:LinearAxis LineStroke="Transparent" Maximum="100" > </telerikChart:LinearAxis> </telerikChart:RadCartesianChart.VerticalAxis> <telerikChart:AreaSeries CombineMode="Stack" Fill="{StaticResource PhoneAccentBrush}"> <telerikChart:AreaSeries.TrackBallTemplate> <DataTemplate> <Ellipse Width="12" Height="12" Fill="{StaticResource Series1Brush}"/> </DataTemplate> </telerikChart:AreaSeries.TrackBallTemplate> </telerikChart:AreaSeries> </telerikChart:RadCartesianChart>CategoricalDataPoint point = new CategoricalDataPoint();
point.Category = dateValue;
point.Value = value;
barSeries.DataPoints.Add(point);
If I use below data to plot the graph, I don't see any chart
# date value
12/21/2012 3:25:12 AM 210000
12/20/2012 3:25:12 AM 200000
12/16/2012 3:25:12 AM 193
12/15/2012 2:45:12 PM 292
12/15/2012 2:25:12 PM 92
12/15/2012 2:15:12 PM 91
12/15/2012 1:45:12 PM 90
12/15/2012 1:05:12 PM 89
12/15/2012 12:55:12 PM 100
12/15/2012 12:25:12 PM 100
In my chart definition, I did set 100 as maximum in chart. But in my data, if I get above data I don't see any chart displayed. But I can see the trackball if hover on the chart area. If I remove the first dataset value (i.e. value = 210000), I can see the chart.
3 Answers, 1 is accepted
Thank you for writing.
This is to be expected. Having points outside the min/max value range results in undefined behavior. You should either remove the Maximum restriction or filter your data so that it is inside the min/max value range.
Please write again if you have other questions.
Victor
the Telerik team
Rank 1
I agree on that, if data is outside of max/min range - it shouldn't plot the chart...but
if use below data, I can still see graph (note: max/min range is 0-100)
12/20/2012 3:25:12 AM 200000
12/16/2012 3:25:12 AM 193
12/15/2012 2:45:12 PM 292
12/15/2012 2:25:12 PM 92
12/15/2012 2:15:12 PM 91
12/15/2012 1:45:12 PM 90
12/15/2012 1:05:12 PM 89
12/15/2012 12:55:12 PM 100
12/15/2012 12:25:12 PM 100
Thanks for writing again.
Yes, this is what undefined behavior means. There is no guarantee that the chart will work when it has conflicting settings.
There are two things we could do on our side. Either throw an exception when we detect such conflicting conditions or simply disregard all data that is outside the min/max range. If we choose to disregard the data and draw the chart without the problematic data it might be argued that the chart might be more robust, however this way it will swallow a problem that is in your settings/data which will probably bite you later on.
Thanks for bringing this case to our attention. We will consider what to do in order to make the chart have more explicit behavior.
Please write again if you have other questions.
Victor
the Telerik team