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[Solved] Binding xaml to DataSeries

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Mathew Tonsager asked on 08 Apr 2010, 01:20 PM

Hello,

I would like to thank you in advance for reading this!

Is there a way to bind the DataSeries data to a property when customizing a BarSeries/LineSeries style?

I know you can do this if the data is set at the ItemSource level, but what about the DataSeries level?

Ex:

    
            <Style x:Key="BarSeriesStyle" TargetType="telerikCharting:Bar">  
        
                    <Setter Property="Template">  
        
                        <Setter.Value> 
        
                            <ControlTemplate TargetType="telerikCharting:Bar">  
        
                                <Canvas> 
        
                                    <Rectangle x:Name="PART_DefiningGeometry" 
        
                                          Height="{TemplateBinding ItemActualHeight}" 
        
                                          Width="{TemplateBinding ItemActualWidth}" 
        
                                          RadiusX="2" 
        
                                          RadiusY="2" 
        
                                          Fill="Pink" 
        
                                          Stroke="{Binding DataItem.GradeColor}" 
        
                                          StrokeThickness="3"  /> 
        
                                </Canvas> 
        
                                <ControlTemplate.Triggers> 
        
                                    <Trigger Property="IsMouseOver" Value="true">  
        
                                        <Setter TargetName="PART_DefiningGeometry" Property="Fill" Value="{StaticResource LightBrush}"/>  
        
                                        <Setter TargetName="PART_DefiningGeometry" Property="Stroke" Value="{StaticResource LightBrush}"/>  
        
                                        <!--<Setter TargetName="Border" Property="SnapsToDevicePixels" Value="true"/>--> 
        
                                    </Trigger> 
        
                                </ControlTemplate.Triggers> 
        
                            </ControlTemplate> 
        
                        </Setter.Value> 
        
                    </Setter> 
        
                </Style>

Notice the line Stroke="{Binding DataItem.GradeColor}"

How would I bind this to a DataSeries set of information as opposed to the ItemSource set of information?

Thanks,
Matt

2 Answers, 1 is accepted

answered on 08 Apr 2010, 02:51 PM

Hi again,

I think I have figured out why the (Stroke="{Binding DataItem.GradeColor}") binding is not working. The DataItem is not being set when I add the DataSeries using VB code.

I am trying to add a DataSeries manually in code like this:

    
            Dim ds As New DataSeries()  
        
                    ds.Definition = New BarSeriesDefinition()  
        
                    For Each person As Person In studentList  
        
                        ds.Add(New DataPoint(person.Name, person.Grade))  
        
                    Next

Then add the DataSeries to the RadChart like this:

    
            RadChart1.DefaultView.ChartArea.DataSeries.Add(ds)

So, naturally my binding won't work because my DataItem is not set for the DataSeries.

See attached picture!

How do I set the DataItem in VB for each DataSeries I create?

Thanks,
Matt