DataSeries Style

[Jean]

hi,

I use radchart in my project, since i use NoXaml dll, my DataSeries no longer displayed.  I try to define the SerieStyle on the chart area and on the SplineAreaSeriesDefinition and PieSeries but it doesn't works.

In the OutPutWindow: i got a warning when i click on the legend : System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.Charting.ChartLegend', AncestorLevel='1''. BindingExpression:Path=LegendItemMarkerShape; DataItem=null; target element is 'ChartLegendItem' (Name=''); target property is 'MarkerShape' (type 'MarkerShape')

This is the xaml code :

<telerik:RadChart telerik:StyleManager.Theme="Windows8" x:Name="radAreaChart" UseDefaultLayout="False" BorderThickness="0" Background="{x:Null}" BorderBrush="{x:Null}" >

                            <Grid>

                                <Grid.RowDefinitions>

                                    <RowDefinition Height="auto"></RowDefinition>

                                    <RowDefinition Height="*"></RowDefinition>

                                </Grid.RowDefinitions>

                                <Grid.ColumnDefinitions>

                                    <ColumnDefinition Width="*"/>

                                    <ColumnDefinition Width="auto"/>

 

                                </Grid.ColumnDefinitions>

                                <telerik:ChartTitle telerik:StyleManager.Theme="Windows8" x:Name="AreaChartTitle" HorizontalAlignment="Center" Content="{Binding Resource.ConnectionPerProfile}"

                                        Grid.Row="0" Grid.Column="1" Background="{x:Null}" FontFamily="Segoe UI Semibold" BorderThickness="0" OuterBorderBrush="{x:Null}" FontSize="13.333">

                                </telerik:ChartTitle>

                                <telerik:ChartArea telerik:StyleManager.Theme="Windows8"  Grid.Row="1" x:Name="AreaChart"    Margin="0"  LegendName="AreaChartLegend">

 

                                </telerik:ChartArea>

 

                                <telerik:ChartLegend telerik:StyleManager.Theme="Windows8" Grid.Row="1" x:Name="AreaChartLegend" Header="{Binding Resource.Legend}" Margin="-4,0" Grid.Column="1" />

                            </Grid>

                        </telerik:RadChart>




And this is my C# Code to add Series

AreaChart.DataSeries.Clear();
           AreaChart.AxisX.AutoRange = true;
           AreaChart.AxisY.AxisStyles.AlternateStripLineStyle = this.Resources["HorizontalStripLineStyle"] as Style;
           AreaChart.SeriesStyles.SplineAreaSeriesStyle = this.Resources["ScatterAreaSeriesStyle"] as Style;
           DataSeries chartProfilesSeries = new DataSeries();

           chartProfilesSeries.Definition = new SplineAreaSeriesDefinition();

           chartProfilesSeries.Definition.SeriesStyle = this.Resources["ScatterAreaSeriesStyle"] as Style;

           if (null != (this.DataContext as MainViewModel).LstChartTotalDateConnexion)
           {
               foreach (ChartsDateConnectionDTO c in (this.DataContext as MainViewModel).LstChartTotalDateConnexion)
               {
                   chartProfilesSeries.Add(new DataPoint()
                   {
                       //Label = String.Format("{0} : {1} ", Strings.TotalOfconnection, c.Date.ToString("dd/MM")),
                       YValue = c.Connection,
                       XCategory = c.Date.ToString("dd/MM"),
                       Tooltip = String.Format("{0} du {1} ", Strings.TotalOfconnection, c.Date.ToString("dd/MM"))
                   });
               }
               chartProfilesSeries.Definition.SeriesName = String.Format("{0}", Strings.TotalOfconnection);
               chartProfilesSeries.LegendLabel = String.Format("{0}", Strings.TotalOfconnection);
               chartProfilesSeries.Definition.ShowItemToolTips = true;
               chartProfilesSeries.Definition.ShowItemLabels = true;
               chartProfilesSeries.Definition.InteractivitySettings.HoverScope = InteractivityScope.Series;
               chartProfilesSeries.Definition.InteractivitySettings.SelectionScope = InteractivityScope.Series;


               AreaChart.DataSeries.Add(chartProfilesSeries);

Thanks for you help

Best regards

[Petar Marchev]

Hi Olivier,

I think that there might be some misunderstanding. We have never supported NoXaml for the old RadChart. It is an old control and has several limitation, one of which is the implicit styling mechanism. This is why we do not ship NoXaml binaries for the Charting dll.

If you have not yet integrated the old RadChart into your application I suggest that you completely remove the Charting reference and migrate to the new ChartView. The ChartView is actually a set of controls - RadCartesianChart, RadPieChart, RadPolarChart and ChartDataSource. It has a much better performance rate, it is very flexible and easy to set up, and it resolves many of the limitations that the old chart had.
References:
Online examples
Online documentation
sdk samples (you may want to install the sdk browser)

Regards,
Petar Marchev
Telerik