wpftoolkit/ExtendedWPFToolkitSolution/Src/Samples/Modules/Samples.Modules.Pie/Views/PieChart.xaml

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<sample:DemoView x:Class="Samples.Modules.Pie.Views.PieChart"
                 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                 xmlns:sample="clr-namespace:Samples.Infrastructure.Controls;assembly=Samples.Infrastructure"
                 xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
                 xmlns:local="clr-namespace:Samples.Modules.Pie.Views"
                 Title="Chart"
                 Description="Obviously, the Pie control can be used to create a pie chart.">

   <sample:DemoView.Resources>
      <XmlDataProvider x:Key="XMLData">
         <x:XData>
            <Milks xmlns="">
               <Milk Type="Human"
                     Fat=".040"
                     Protein=".011"
                     Lactose=".068"
                     Water=".88" />
               <Milk Type="Cow"
                     Fat=".037"
                     Protein=".034"
                     Lactose=".048"
                     Water=".87" />
               <Milk Type="Cow Holstein Friesian"
                     Fat=".036"
                     Protein=".034"
                     Lactose=".049"
                     Water=".87" />
               <Milk Type="Cow Brown Swiss"
                     Fat=".040"
                     Protein=".036"
                     Lactose=".047"
                     Water=".87" />
               <Milk Type="Cow Jersey"
                     Fat=".052"
                     Protein=".039"
                     Lactose=".049"
                     Water=".85" />
               <Milk Type="Cow Zebu"
                     Fat=".047"
                     Protein=".033"
                     Lactose=".049"
                     Water=".86" />
               <Milk Type="Water Buffalo"
                     Fat=".069"
                     Protein=".038"
                     Lactose=".051"
                     Water=".83" />
               <Milk Type="Yak"
                     Fat=".065"
                     Protein=".058"
                     Lactose=".046"
                     Water=".82" />
               <Milk Type="Goat"
                     Fat=".040"
                     Protein=".034"
                     Lactose=".045"
                     Water=".88" />
               <Milk Type="Sheep"
                     Fat=".075"
                     Protein=".060"
                     Lactose=".048"
                     Water=".80" />
               <Milk Type="Camel"
                     Fat=".029"
                     Protein=".039"
                     Lactose=".054"
                     Water=".87" />
               <Milk Type="Reindeer"
                     Fat=".017"
                     Protein=".011"
                     Lactose=".028"
                     Water=".68" />
               <Milk Type="Horse"
                     Fat=".012"
                     Protein=".020"
                     Lactose=".063"
                     Water=".90" />
               <Milk Type="Fin Whale"
                     Fat=".042"
                     Protein=".012"
                     Lactose=".013"
                     Water=".43" />
            </Milks>
         </x:XData>
      </XmlDataProvider>

      <local:SliceLabelConverter x:Key="sliceLabelConverter" />

      <DataTemplate x:Key="MilkTemplate">
         <StackPanel Orientation="Horizontal">
            <TextBlock Width="135"
                       Text="{Binding XPath=@Type}" />
            <TextBlock Width="100"
                       Text="{Binding XPath=@Fat}" />
            <TextBlock Width="100"
                       Text="{Binding XPath=@Protein}" />
            <TextBlock Width="100"
                       Text="{Binding XPath=@Lactose}" />
            <TextBlock Width="100"
                       Text="{Binding XPath=@Water}" />
         </StackPanel>
      </DataTemplate>
   </sample:DemoView.Resources>
   <Grid x:Name="LayoutRoot"
         DataContext="{Binding Source={StaticResource XMLData}, XPath=/Milks/Milk}"
         HorizontalAlignment="Center"
         VerticalAlignment="Center">
      <Control />
      <ListBox x:Name="PieDataListBox"
               VerticalAlignment="Top"
               Height="150"
               ItemTemplate="{StaticResource MilkTemplate}"
               ItemsSource="{Binding}"
               IsSynchronizedWithCurrentItem="True"
               HorizontalAlignment="Center"
               Width="503"
               ScrollViewer.HorizontalScrollBarVisibility="Disabled" />
      <Viewbox x:Name="PiesViewbox"
               HorizontalAlignment="Center"
               Margin="20,270,20,0"
               VerticalAlignment="Top"
               Width="300"
               Height="300"
               Stretch="Fill">
         <Grid Width="192"
               x:Name="PiesGrid"
               Height="192">

            <xctk:Pie x:Name="WaterPie"
                      Fill="#FFCFDCFA"
                      Stroke="#FF000000"
                      Opacity="0.5"
                      Slice="{Binding XPath=@Water}" />

            <xctk:Pie x:Name="LactosePie"
                      Fill="#FFEBFF68"
                      Stroke="#FF000000"
                      Opacity="0.5"
                      StartAngle="{Binding EndAngle, ElementName=WaterPie, Mode=OneWay}"
                      Slice="{Binding XPath=@Lactose}" />

            <xctk:Pie x:Name="FatPie"
                      Fill="#FF6EFA6E"
                      Stroke="#FF000000"
                      Opacity="0.5"
                      StartAngle="{Binding EndAngle, ElementName=LactosePie, Mode=OneWay}"
                      Slice="{Binding XPath=@Fat}" />

            <xctk:Pie x:Name="ProteinPie"
                      Fill="#FFFF8676"
                      Stroke="#FF000000"
                      Opacity="0.5"
                      StartAngle="{Binding EndAngle, ElementName=FatPie, Mode=OneWay}"
                      Slice="{Binding XPath=@Protein}" />

            <TextBlock RenderTransformOrigin="0.5,0.5"
                       VerticalAlignment="Center"
                       Text="{Binding ElementName=WaterPie, Path=Slice, Converter={StaticResource sliceLabelConverter}, ConverterParameter=Water}"
                       HorizontalAlignment="Left"
                       Margin="60,0,0,0"
                       FontFamily="Segoe UI"
                       FontSize="9">
					<TextBlock.RenderTransform>
						<TransformGroup>
							<TranslateTransform X="135" Y="0" />
							<RotateTransform Angle="{Binding EndAngle, ElementName=WaterPie}" />
						</TransformGroup>
					</TextBlock.RenderTransform>
            </TextBlock>

            <TextBlock RenderTransformOrigin="0.5,0.5"
                       VerticalAlignment="Center"
                       Text="{Binding ElementName=LactosePie, Path=Slice, Converter={StaticResource sliceLabelConverter}, ConverterParameter=Lactose}"
                       HorizontalAlignment="Left"
                       Margin="60,0,0,0"
                       FontFamily="Segoe UI"
                       FontSize="9">
					<TextBlock.RenderTransform>
						<TransformGroup>
							<TranslateTransform X="135" Y="0" />
							<RotateTransform Angle="{Binding EndAngle, ElementName=LactosePie}" />
						</TransformGroup>
					</TextBlock.RenderTransform>
            </TextBlock>

            <TextBlock RenderTransformOrigin="0.5,0.5"
                       VerticalAlignment="Center"
                       Text="{Binding ElementName=FatPie, Path=Slice, Converter={StaticResource sliceLabelConverter}, ConverterParameter=Fat}"
                       HorizontalAlignment="Left"
                       Margin="60,0,0,0"
                       FontFamily="Segoe UI"
                       FontSize="9">
					<TextBlock.RenderTransform>
						<TransformGroup>
							<TranslateTransform X="135" Y="0" />
							<RotateTransform Angle="{Binding EndAngle, ElementName=FatPie}" />
						</TransformGroup>
					</TextBlock.RenderTransform>
            </TextBlock>

            <TextBlock RenderTransformOrigin="0.5,0.5"
                       VerticalAlignment="Center"
                       Text="{Binding ElementName=ProteinPie, Path=Slice, Converter={StaticResource sliceLabelConverter}, ConverterParameter=Protein}"
                       HorizontalAlignment="Left"
                       Margin="60,0,0,0"
                       FontFamily="Segoe UI"
                       FontSize="9">
					<TextBlock.RenderTransform>
						<TransformGroup>
							<TranslateTransform X="135" Y="0" />
							<RotateTransform Angle="{Binding EndAngle, ElementName=ProteinPie}" />
						</TransformGroup>
					</TextBlock.RenderTransform>
            </TextBlock>

         </Grid>
      </Viewbox>
   </Grid>
</sample:DemoView>