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Cartesian Chart Only Shows 1 Value

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Alfredo
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Alfredo asked on 19 Dec 2013, 07:49 PM
I have a problem working with a LineSeries in a RadCartesianChart: my binding series has 10 values, but the chart only shows 1 of them.

What could be the problem in my code?

XAML:
<telerik:RadCartesianChart x:Name="chPrueba" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="972" Height="477">
 
            <telerik:RadCartesianChart.Grid>
                <telerik:CartesianChartGrid
                                    MajorLinesVisibility="XY"
                                    StripLinesVisibility="Y"
                                    MajorXLineDashArray="10, 5"
                                    MajorXLinesRenderMode="All">
                    <telerik:CartesianChartGrid.YStripeBrushes>
                        <SolidColorBrush Color="#FFDFDFDF" Opacity="0.3" />
                        <SolidColorBrush Color="Transparent" />
                    </telerik:CartesianChartGrid.YStripeBrushes>
                </telerik:CartesianChartGrid>
            </telerik:RadCartesianChart.Grid>
 
            <telerik:RadCartesianChart.VerticalAxis>
                <telerik:LinearAxis
                                    Minimum="0"
                                    Maximum="100"  />
            </telerik:RadCartesianChart.VerticalAxis>
 
            <telerik:RadCartesianChart.HorizontalAxis>
                <telerik:CategoricalAxis LabelOffset="0" LastLabelVisibility="Visible"
                                         LineThickness="1" MajorTickOffset="0" MajorTickInterval="1"
                                         PlotMode="BetweenTicks" TickThickness="1" ZIndex="0" LabelFitMode="Rotate"/>
            </telerik:RadCartesianChart.HorizontalAxis>
 
            <telerik:LineSeries x:Name="chLineSeries" CategoryBinding="fecha" ValueBinding="valor" AllowSelect="True" Stroke="#FF0DAE0D"/>
 
            <telerik:RadCartesianChart.Behaviors>
                <telerik:ChartTrackBallBehavior ShowIntersectionPoints="True"/>
            </telerik:RadCartesianChart.Behaviors>
 
 
        </telerik:RadCartesianChart>


Data Class:
public class vAbortos
    {
        public Double valor { get; set; }
        public String fecha {get; set;}
 
        public vAbortos()
        {
        }
    }

Creating the data and loading it to the chart:
public void WindowLoaded()
        {
            List<vAbortos> valores = new List<vAbortos> { };
 
            Random rnd = new Random();
            DateTime fc = new DateTime(2013, 12, 1);
            for (int i = 0; i <= 9; i++)
            {
                vAbortos ab = new vAbortos();
                ab.fecha = fc.AddDays(1).ToShortDateString();
                fc.AddDays(1);
                ab.valor = rnd.NextDouble() * 10;
 
                valores.Add(ab);
            }
 
            this.chPrueba.Series[0].ItemsSource = valores;
 
            (chPrueba.VerticalAxis as LinearAxis).Minimum = 0;
            (chPrueba.VerticalAxis as LinearAxis).Maximum = 15;
        }



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Pavel R. Pavlov
Telerik team
answered on 24 Dec 2013, 03:05 PM
Hi Alfredo,

Thank you for contacting us on that matter and providing us with detailed information about your scenario. I managed to track the behavior that you report down. The reason for that rendering is the fact that you actually create all your points with the same category. Hence, the reported layout is expected.

The reason for this is the DateTime.AddDays()  method. Please note that it returns a new instance with the added day. It does not change the already created DateTime instance.

Please make sure that the category that you set are different and try the RadCartesianChart control again.

Regards,
Pavel R. Pavlov
Telerik
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ChartView
Asked by
Alfredo
Top achievements
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Answers by
Pavel R. Pavlov
Telerik team
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