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[Solved] Customizing Legend Label with percentage

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Michele asked on 21 Sep 2009, 07:57 AM

Hello to everybody,
I've got a pie chart with 30 pieces, some are really small and end-user cannot read the value, I was wondering if it's possible to have the Legend label item (ChartLegendItem) to show the Text with the percentage between (), for example Milan (40%), Rome (10%)

The Item mapping of the series are defined in this way :

    
             sm.ItemMappings.Add(new ItemMapping("Description", DataPointMember.XCategory)); 
        
                        sm.ItemMappings.Add(new ItemMapping("Percentage",DataPointMember.YValue)); 
        
                        sm.ItemMappings.Add(new ItemMapping("Description", DataPointMember.LegendLabel))

and looking at the forum I was able to catch the style but not able to modify it :

    
             <Style x:Name="CustomLegendItemStyle" TargetType="telerikCharting:ChartLegendItem"> 
        
                            <Setter Property="Foreground" Value="White" /> 
        
                            <Setter Property="FontSize" Value="9" /> 
        
                            <Setter Property="Template"> 
        
                                <Setter.Value> 
        
                                    <ControlTemplate TargetType="telerikCharting:ChartLegendItem"> 
        
                                        <Grid VerticalAlignment="Top"> 
        
                                            <Grid.ColumnDefinitions> 
        
                                                <ColumnDefinition Width="Auto" /> 
        
                                                <ColumnDefinition Width="*" /> 
        
                                            </Grid.ColumnDefinitions> 
        
                                            <Rectangle x:Name="PART_LegendItemMarker" Style="{TemplateBinding ItemStyle}" /> 
        
                                            <TextBlock Grid.Column="1" Margin="5" VerticalAlignment="Center" Text="{TemplateBinding Label}" FontSize="11" Foreground="#FFFFFFFF" /> 
        
                                        </Grid> 
        
                                    </ControlTemplate> 
        
                                </Setter.Value> 
        
                            </Setter> 
        
                        </Style>

anyone can help me on this?
Thanks
Paolo

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