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Use of a converter with a CrosstabTransformation


rudi
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Hi,

 I'm using a CrosstabTranformation in order to obtain the results I want in a Pie chart.

What's currently being displayed is a numerical value, and I would like to use a converter in order to show the textual description of that value in the Legend.

<ChartFX:Chart Grid.Column="2" Grid.RowSpan="3" Gallery="Pie">

<ChartFX:Chart.ItemsSource>

<Binding ElementName="DataGridControlTaskDetails" Path="ItemsSource"/>

</ChartFX:Chart.ItemsSource>

<ChartFX:Chart.DataTransforms>

<ChartFXData:CrosstabTransform RowPath="RunStatusCode" Sorted="False"/>

</ChartFX:Chart.DataTransforms>

</ChartFX:Chart>

 

Thanks,

Rudi.

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Note that the following approach (where you can use your own converter) will only change the displayed value on the legend box, if you hover on a pie slice you will still get a tooltip showing the numerical value of the RunStatusCode.

In XAML

<

DataTemplate x:Key="legendTemplate">  <Grid x:Name="grid" Margin="{Binding Path=Margin}">   <Grid.ColumnDefinitions>   <ColumnDefinition Width="*" SharedSizeGroup="FirstRow" />   <ColumnDefinition Width="*" />   </Grid.ColumnDefinitions>   <cfxControls:MarkerLegendControl Content="{Binding Path=Self}" Grid.Column="0" />   <Border Background="Transparent" Grid.Column="1" VerticalAlignment="Center">   <TextBlock IsHitTestVisible="false" Text="{Binding Path=Content, ConverterGoesHere}" Foreground="{Binding Path=Foreground}" FontFamily="{Binding Path=FontFamily}" FontSize="{Binding Path=FontSize}" FontStyle="{Binding Path=FontStyle}" FontWeight="{Binding Path=FontWeight}"/>   </Border>  </Grid>  <DataTemplate.Triggers>   <DataTrigger Binding="{Binding Path=Dimmed}">   <DataTrigger.Value>   <sys:Boolean>True</sys:Boolean>   </DataTrigger.Value>   <Setter Property="Opacity" Value="0.25" TargetName="grid" />   </DataTrigger>  </DataTemplate.Triggers></DataTemplate>

You might need the following namespaces in your root node

xmlns:cfxControls="clr-namespace:ChartFX.WPF.Controls;assembly=ChartFX.WPF"xmlns:sys="clr-namespace:System;assembly=mscorlib"

In your code you will need the following

chart1.LegendBox.ItemAttributes[chart1.AxisX].Template = (DataTemplate) FindResource("legendTemplate");

Regards,

JuanC

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