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VimalaThirumalaikumarVimalaThirumalaikumar
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Merge pull request #3 from Priyadharshini-Sf4862/WPF-956968-KBImprovement
WPF-956968-Updated the WPF KB sample and readme file
2 parents b075625 + 52613da commit 2c73c10

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‎WPF_Sample/Sample/App.xaml‎ renamed to ‎CustomLegendSample/App.xaml‎

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<Application x:Class="Sample.App"
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<Application x:Class="CustomLegendSample.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:CustomLegendSample"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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‎WPF_Sample/Sample/App.xaml.cs‎ renamed to ‎CustomLegendSample/App.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Configuration;
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using System.Data;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace Sample
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namespace CustomLegendSample
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎CustomLegendSample/AssemblyInfo.cs‎

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using System.Windows;
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[assembly: ThemeInfo(
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ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
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//(used if a resource is not found in the page,
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// or application resource dictionaries)
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ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
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//(used if a resource is not found in the page,
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// app, or any theme specific resource dictionaries)
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)]

‎CustomLegendSample/CustomLegendSample.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>WinExe</OutputType>
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<TargetFramework>net9.0-windows</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<UseWPF>true</UseWPF>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.SfChart.WPF" Version="*" />
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</ItemGroup>
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</Project>

‎CustomLegendSample/CustomLegendSample.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.12.35527.113 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CustomLegendSample", "CustomLegendSample.csproj", "{3CCAEB5F-6EA0-45F3-8320-34B305EDE66D}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{3CCAEB5F-6EA0-45F3-8320-34B305EDE66D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{3CCAEB5F-6EA0-45F3-8320-34B305EDE66D}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{3CCAEB5F-6EA0-45F3-8320-34B305EDE66D}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{3CCAEB5F-6EA0-45F3-8320-34B305EDE66D}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

‎WPF_Sample/Sample/MainWindow.xaml‎ renamed to ‎CustomLegendSample/MainWindow.xaml‎

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<Window x:Class="Sample1.MainWindow"
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<Window x:Class="CustomLegendSample.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:Sample1"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:chart="clr-namespace:Syncfusion.UI.Xaml.Charts;assembly=Syncfusion.SfChart.WPF"
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Title="Sample" WindowState="Maximized"
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x:Name="window"
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Height="500" Width="725">
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xmlns:local="clr-namespace:CustomLegendSample"
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mc:Ignorable="d"
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Title="Sample" WindowState="Maximized" x:Name="window" Height="500" Width="725">
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<Grid x:Name="grid" Margin="10">
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<Grid.DataContext>
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<local:ViewModel x:Name="viewModel"></local:ViewModel>
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<local:ViewModel x:Name="viewModel"/>
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</Grid.DataContext>
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<Grid.Resources>
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<DataTemplate x:Key="itemTemplate">
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<StackPanel Margin="10,0,10,0" Orientation="Horizontal">
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<CheckBox Margin="2" Tag="{Binding}"
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IsChecked="True"
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Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"/>
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IsChecked="True"
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Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"/>
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<Rectangle Width="{Binding IconWidth}" Height="{Binding IconHeight}"
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Fill="{Binding Interior}" Margin="2"/>
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Fill="{Binding Interior}" Margin="2"/>
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<TextBlock HorizontalAlignment="Center"
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Margin="5,0,0,0"
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VerticalAlignment="Center"
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Text="{Binding Item.XValue}">
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Margin="5,0,0,0"
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VerticalAlignment="Center"
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Text="{Binding Item.XValue}">
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</TextBlock>
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</StackPanel>
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</DataTemplate>
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</Grid.Resources>
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<chart:SfChart x:Name="chart">
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<chart:SfChart x:Name="chart">
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<local:PieSeriesExt x:Name="series1" Label="Series" XBindingPath="XValue" YBindingPath="YValue" />
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<local:PieSeriesExt x:Name="series2" XBindingPath="XValue" YBindingPath="YValue" />
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</chart:SfChart>
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</Grid>
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</Grid>
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</Window>

‎WPF_Sample/Sample/MainWindow.xaml.cs‎ renamed to ‎CustomLegendSample/MainWindow.xaml.cs‎

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using Syncfusion.UI.Xaml.Charts;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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using System.Collections;
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using System.Reflection;
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namespace Sample1
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namespace CustomLegendSample
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{
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using Syncfusion.UI.Xaml.Charts;
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using System.Collections.ObjectModel;
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using System.Reflection;
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using System.Windows;
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using System.Windows.Controls;
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/// <summary>
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/// Interaction logic for MainWindow.xaml
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/// </summary>
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legend.ItemTemplate = grid.Resources["itemTemplate"] as DataTemplate;
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chart.Legend = legend;
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}
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private void CheckBox_Checked(object sender, RoutedEventArgs e)
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info?.Invoke(chart, new object[] { true });
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}
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}
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public class Model
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{
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public string XValue { get; set; }
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public double YValue { get; set; }
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}
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public class ViewModel
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{
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public ViewModel()
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{
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GenerateData();
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}
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public void GenerateData()
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{
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Data = new ObservableCollection<Model>();
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Random rd = new Random();
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for (int i = 0; i < 6; i++)
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{
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Data.Add(new Model()
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{
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XValue = "Label" +i.ToString(),
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YValue = rd.Next(0, 50)
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});
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}
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}
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private ObservableCollection<Model> data;
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public ObservableCollection<Model> Data
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{
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get { return data; }
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set { data = value; }
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}
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}
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public class PieSeriesExt :PieSeries
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public class PieSeriesExt : PieSeries
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{
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public ObservableCollection<ChartSegment> ChartSegments
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{
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}
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}
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}
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}
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}

‎CustomLegendSample/Model/Model.cs‎

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namespace CustomLegendSample
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{
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public class Model
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{
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public string XValue { get; set; }
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public double YValue { get; set; }
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}
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}

‎CustomLegendSample/ViewModel/ViewModel.cs‎

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namespace CustomLegendSample
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{
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using System.Collections.ObjectModel;
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public class ViewModel
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{
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public ViewModel()
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{
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GenerateData();
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}
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public void GenerateData()
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{
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Data = new ObservableCollection<Model>();
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Random rd = new Random();
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for (int i = 0; i < 6; i++)
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{
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Data.Add(new Model()
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{
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XValue = "Label" + i.ToString(),
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YValue = rd.Next(0, 50)
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});
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}
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}
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private ObservableCollection<Model> data;
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public ObservableCollection<Model> Data
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{
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get { return data; }
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set { data = value; }
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}
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}
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}

‎README.md‎

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## Output:
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The following demo image illustrates creating custom legend items, with and without toogle functionality in WPF, following the implemented steps.
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![custom legend without toggle wpf chart.png](custom-legend-without-toggle.png)
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![custom legend with toggle wpf chart](custom-legend-with-toggle.png)
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KB article - [How to create custom legend items in WPF Chart?](https://www.syncfusion.com/kb/10675/how-to-create-custom-legend-items-in-wpf-chart)
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## Troubleshooting
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#### Path too long exception
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If you are facing a path too long exception when building this example project, close Visual Studio and rename the repository to a shorter name before building the project.
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For more details, refer to the KB on [How to create custom legend items in WPF Chart](https://www.syncfusion.com/kb/10675/how-to-create-custom-legend-items-in-wpf-chart).

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