ComponentOne FlexChart for UWP
Quick Start
Sunburst Chart > Quick Start

This quick start is intended to guide you through a step-by-step process of creating a simple Sunburst application and running the same in Visual Studio.

To quickly get started with Sunburst chart and observe how it appears on running the application, follow these steps:

  1. Add Sunburst Chart to the Application
  2. Bind Sunburst Chart to a Data Source
  3. Run the Application

The following image displays how a basic Sunburst chart appears after completing the steps mentioned above.

Step 1: Add Sunburst Chart to the Application

  1. Create a Blank App (Universal Windows) in Visual Studio.
  2. Drag and drop the C1Sunburst control to the MainPage.
    The following dlls are added automatically to the application:
    C1.UWP.dll
    C1.UWP.DX.dll
    C1.UWP.FlexChart.dll

    The XAML markup resembles the following code in the <Grid></Grid> tags.
    <Grid>
    <Chart:C1Sunburst x:Name="flexPie" 
                      Binding="Value" 
                      BindingName="Name" 
                      HorizontalAlignment="Left" 
                      Height="300" 
                      VerticalAlignment="Top" 
                      Width="300">
        <Chart:C1Sunburst.ItemsSource>
            <Chart:FlexPieSliceCollection>
                <Chart:FlexPieSlice Name="Slice1" Value="1"/>
                <Chart:FlexPieSlice Name="Slice2" Value="2"/>
                <Chart:FlexPieSlice Name="Slice3" Value="3"/>
                <Chart:FlexPieSlice Name="Slice4" Value="4"/>
            </Chart:FlexPieSliceCollection>
        </Chart:C1Sunburst.ItemsSource>
    </Chart:C1Sunburst>
</Grid>

Step 2: Bind Sunburst Chart to a Data Source

In this step, you first create a class DataService that generates random sales data for four quarters, namely Q1, Q2, Q3, and Q4 in 2013, 2014, and 2015. Next, you bind Sunburst to the created class using the ItemsSource property provided by the FlexChartBase class. Then, you specify numeric values and labels for the Sunburst slices using the Binding and the BindingName property, respectively of the FlexChartBase and the C1FlexPie class.

  1. Add a class, DataService and add the following code.
    Public Class DataService
    Private rnd As New Random()
    Shared _default As DataService

    Public Shared ReadOnly Property Instance() As DataService
        Get
            If _default Is Nothing Then
                _default = New DataService()
            End If

            Return _default
        End Get
    End Property

    Public Shared Function CreateHierarchicalData() As List(Of DataItem)
        Dim rnd As Random = Instance.rnd

        Dim years As New List(Of String)()
        Dim times As New List(Of List(Of String))() From {
            New List(Of String)() From {
                "Jan",
                "Feb",
                "Mar"
            },
            New List(Of String)() From {
                "Apr",
                "May",
                "June"
            },
            New List(Of String)() From {
                "Jul",
                "Aug",
                "Sep"
            },
            New List(Of String)() From {
                "Oct",
                "Nov",
                "Dec"
            }
        }

        Dim items As New List(Of DataItem)()
        Dim yearLen = Math.Max(CInt(Math.Round(Math.Abs(5 - Instance.rnd.NextDouble() * 10))), 3)
        Dim currentYear As Integer = DateTime.Now.Year
        For i As Integer = yearLen To 1 Step -1
            years.Add((currentYear - i).ToString())
        Next
        Dim quarterAdded = False

        years.ForEach(Function(y)
                          Dim i = years.IndexOf(y)
                          Dim addQuarter = Instance.rnd.NextDouble() > 0.5
                          If Not quarterAdded AndAlso i = years.Count - 1 Then
                              addQuarter = True
                          End If
                          Dim year = New DataItem() With {
                              .year = y
                          }
                          If addQuarter Then
                              quarterAdded = True
                              times.ForEach(Function(q)
                                                Dim addMonth = Instance.rnd.NextDouble() > 0.5
                                                Dim idx As Integer = times.IndexOf(q)
                                                Dim quar As String = "Q" + (idx + 1).ToString()
                                                Dim quarters = New DataItem() With {
                                                    .year = y,
                                                    .Quarter = quar
                                                }
                                                If addMonth Then
                                                    q.ForEach(Function(m)
                                                                  quarters.Items.Add(New DataItem() With {
                                                                      .year = y,
                                                                      .Quarter = quar,
                                                                      .Month = m,
                                                                      .Value = rnd.[Next](20, 30)
                                                                  })

                                                              End Function)
                                                Else
                                                    quarters.Value = rnd.[Next](80, 100)
                                                End If
                                                year.Items.Add(quarters)

                                            End Function)
                          Else
                              year.Value = rnd.[Next](80, 100)
                          End If
                          items.Add(year)

                      End Function)

        Return items
    End Function

    Public Shared Function CreateFlatData() As List(Of FlatDataItem)
        Dim rnd As Random = Instance.rnd
        Dim years As New List(Of String)()
        Dim times As New List(Of List(Of String))() From {
            New List(Of String)() From {
                "Jan",
                "Feb",
                "Mar"
            },
            New List(Of String)() From {
                "Apr",
                "May",
                "June"
            },
            New List(Of String)() From {
                "Jul",
                "Aug",
                "Sep"
            },
            New List(Of String)() From {
                "Oct",
                "Nov",
                "Dec"
            }
        }

        Dim items As New List(Of FlatDataItem)()
        Dim yearLen = Math.Max(CInt(Math.Round(Math.Abs(5 - rnd.NextDouble() * 10))), 3)
        Dim currentYear As Integer = DateTime.Now.Year
        For i As Integer = yearLen To 1 Step -1
            years.Add((currentYear - i).ToString())
        Next
        Dim quarterAdded = False
        years.ForEach(Function(y)
                          Dim i = years.IndexOf(y)
                          Dim addQuarter = rnd.NextDouble() > 0.5
                          If Not quarterAdded AndAlso i = years.Count - 1 Then
                              addQuarter = True
                          End If
                          If addQuarter Then
                              quarterAdded = True
                              times.ForEach(Function(q)
                                                Dim addMonth = rnd.NextDouble() > 0.5
                                                Dim idx As Integer = times.IndexOf(q)
                                                Dim quar As String = "Q" + (idx + 1).ToString()
                                                If addMonth Then
                                                    q.ForEach(Function(m)
                                                                  items.Add(New FlatDataItem() With {
                                                                      .Year = y,
                                                                      .Quarter = quar,
                                                                      .Month = m,
                                                                      .Value = rnd.[Next](30, 40)
                                                                  })

                                                              End Function)
                                                Else
                                                    items.Add(New FlatDataItem() With {
                                                        .Year = y,
                                                        .Quarter = quar,
                                                        .Value = rnd.[Next](80, 100)
                                                    })
                                                End If

                                            End Function)
                          Else
                              items.Add(New FlatDataItem() With {
                                  .Year = y.ToString(),
                                  .Value = rnd.[Next](80, 100)
                              })
                          End If

                      End Function)

        Return items
    End Function
End Class

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SunburstQuickStart
{
    public class DataService
    {
        Random rnd = new Random();
        static DataService _default;

        public static DataService Instance
        {
            get
            {
                if (_default == null)
                {
                    _default = new DataService();
                }

                return _default;
            }
        }

        public static List<DataItem> CreateHierarchicalData()
        {
            Random rnd = Instance.rnd;

            List<string> years = new List<string>();
            List<List<string>> times = new List<List<string>>()
            {
                new List<string>() { "Jan", "Feb", "Mar"},
                new List<string>() { "Apr", "May", "June"},
                new List<string>() { "Jul", "Aug", "Sep"},
                new List<string>() { "Oct", "Nov", "Dec" }
            };

            List<DataItem> items = new List<DataItem>();
            var yearLen = Math.Max((int)Math.Round(Math.Abs(5 - Instance.rnd.NextDouble() * 10)), 3);
            int currentYear = DateTime.Now.Year;
            for (int i = yearLen; i > 0; i--)
            {
                years.Add((currentYear - i).ToString());
            }
            var quarterAdded = false;

            years.ForEach(y =>
            {
                var i = years.IndexOf(y);
                var addQuarter = Instance.rnd.NextDouble() > 0.5;
                if (!quarterAdded && i == years.Count - 1)
                {
                    addQuarter = true;
                }
                var year = new DataItem() { Year = y };
                if (addQuarter)
                {
                    quarterAdded = true;
                    times.ForEach(q =>
                    {
                        var addMonth = Instance.rnd.NextDouble() > 0.5;
                        int idx = times.IndexOf(q);
                        var quar = "Q" + (idx + 1);
                        var quarters = new DataItem() { Year = y, Quarter = quar };
                        if (addMonth)
                        {
                            q.ForEach(m =>
                            {
                                quarters.Items.Add(new DataItem()
                                {
                                    Year = y,
                                    Quarter = quar,
                                    Month = m,
                                    Value = rnd.Next(20, 30)
                                });
                            });
                        }
                        else
                        {
                            quarters.Value = rnd.Next(80, 100);
                        }
                        year.Items.Add(quarters);
                    });
                }
                else
                {
                    year.Value = rnd.Next(80, 100);
                }
                items.Add(year);
            });

            return items;
        }

        public static List<FlatDataItem> CreateFlatData()
        {
            Random rnd = Instance.rnd;
            List<string> years = new List<string>();
            List<List<string>> times = new List<List<string>>()
            {
                new List<string>() { "Jan", "Feb", "Mar"},
                new List<string>() { "Apr", "May", "June"},
                new List<string>() { "Jul", "Aug", "Sep"},
                new List<string>() { "Oct", "Nov", "Dec" }
            };

            List<FlatDataItem> items = new List<FlatDataItem>();
            var yearLen = Math.Max((int)Math.Round(Math.Abs(5 - rnd.NextDouble() * 10)), 3);
            int currentYear = DateTime.Now.Year;
            for (int i = yearLen; i > 0; i--)
            {
                years.Add((currentYear - i).ToString());
            }
            var quarterAdded = false;
            years.ForEach(y =>
            {
                var i = years.IndexOf(y);
                var addQuarter = rnd.NextDouble() > 0.5;
                if (!quarterAdded && i == years.Count - 1)
                {
                    addQuarter = true;
                }
                if (addQuarter)
                {
                    quarterAdded = true;
                    times.ForEach(q =>
                    {
                        var addMonth = rnd.NextDouble() > 0.5;
                        int idx = times.IndexOf(q);
                        var quar = "Q" + (idx + 1);
                        if (addMonth)
                        {
                            q.ForEach(m =>
                            {
                                items.Add(new FlatDataItem()
                                {
                                    Year = y,
                                    Quarter = quar,
                                    Month = m,
                                    Value = rnd.Next(30, 40)
                                });
                            });
                        }
                        else
                        {
                            items.Add(new FlatDataItem()
                            {
                                Year = y,
                                Quarter = quar,
                                Value = rnd.Next(80, 100)
                            });
                        }
                    });
                }
                else
                {
                    items.Add(new FlatDataItem()
                    {
                        Year = y.ToString(),
                        Value = rnd.Next(80, 100)
                    });
                }
            });

            return items;
        }
    }
}
  2. Add a class, SunburstViewModel and add the following code.
    Imports System.Linq
Imports System.ComponentModel
Imports System.Collections.Generic
Imports System
Imports C1.Chart

Public Class SunburstViewModel

    Public ReadOnly Property HierarchicalData() As List(Of DataItem)
        Get
            Return DataService.CreateHierarchicalData()
        End Get
    End Property

    Public ReadOnly Property FlatData() As List(Of FlatDataItem)
        Get
            Return DataService.CreateFlatData()
        End Get
    End Property

    Public ReadOnly Property Positions() As List(Of String)
        Get
            Return [Enum].GetNames(GetType(Position)).ToList()
        End Get
    End Property

    Public ReadOnly Property Palettes() As List(Of String)
        Get
            Return [Enum].GetNames(GetType(Palette)).ToList()
        End Get
    End Property
End Class

    using C1.Chart;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;

namespace SunburstQuickStart
{
    public class SunburstViewModel
    {
        public List<DataItem> HierarchicalData
        {
            get
            {
                return DataService.CreateHierarchicalData();
            }
        }

        public List<FlatDataItem> FlatData
        {
            get
            {
                return DataService.CreateFlatData();
            }
        }

        public List<string> Positions
        {
            get
            {
                return Enum.GetNames(typeof(Position)).ToList();
            }
        }

        public List<string> Palettes
        {
            get
            {
                return Enum.GetNames(typeof(Palette)).ToList();
            }
        }
    }
}
  3. Add a class, DataItem and add the following code.
    Public Class DataItem
    Private _items As List(Of DataItem)

    Public Property Year() As String
        Get
            Return m_Year
        End Get
        Set
            m_Year = Value
        End Set
    End Property
    Private m_Year As String
    Public Property Quarter() As String
        Get
            Return m_Quarter
        End Get
        Set
            m_Quarter = Value
        End Set
    End Property
    Private m_Quarter As String
    Public Property Month() As String
        Get
            Return m_Month
        End Get
        Set
            m_Month = Value
        End Set
    End Property
    Private m_Month As String
    Public Property Value() As Double
        Get
            Return m_Value
        End Get
        Set
            m_Value = Value
        End Set
    End Property
    Private m_Value As Double
    Public ReadOnly Property Items() As List(Of DataItem)
        Get
            If _items Is Nothing Then
                _items = New List(Of DataItem)()
            End If

            Return _items
        End Get
    End Property
End Class

Public Class FlatDataItem
    Public Property Year() As String
        Get
            Return m_Year
        End Get
        Set
            m_Year = Value
        End Set
    End Property
    Private m_Year As String
    Public Property Quarter() As String
        Get
            Return m_Quarter
        End Get
        Set
            m_Quarter = Value
        End Set
    End Property
    Private m_Quarter As String
    Public Property Month() As String
        Get
            Return m_Month
        End Get
        Set
            m_Month = Value
        End Set
    End Property
    Private m_Month As String
    Public Property Value() As Double
        Get
            Return m_Value
        End Get
        Set
            m_Value = Value
        End Set
    End Property
    Private m_Value As Double
End Class

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SunburstQuickStart
{
    public class DataItem
    {
        List<DataItem> _items;

        public string Year { get; set; }
        public string Quarter { get; set; }
        public string Month { get; set; }
        public double Value { get; set; }
        public List<DataItem> Items
        {
            get
            {
                if (_items == null)
                {
                    _items = new List<DataItem>();
                }

                return _items;
            }
        }
    }

    public class FlatDataItem
    {
        public string Year { get; set; }
        public string Quarter { get; set; }
        public string Month { get; set; }
        public double Value { get; set; }
    }
}
  4. Add a class, Converter and add the following code.
    Imports Windows.UI.Xaml.Data
Imports System
Imports C1.Chart

Public Class EnumToStringConverter
    Implements IValueConverter
    Public Function Convert(value As Object, targetType As Type, parameter As Object, language As String) 
        As Object Implements IValueConverter.Convert
        Return value.ToString()
    End Function

    Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, language As String)
        As Object Implements IValueConverter.ConvertBack
        If targetType Is GetType(Position) Then
            Return CType([Enum].Parse(GetType(Position), value.ToString()), Position)
        Else
            Return CType([Enum].Parse(GetType(Palette), value.ToString()), Palette)
        End If
    End Function
End Class

Public Class StringToEnumConverter
    Implements IValueConverter
    Public Function Convert(value As Object, targetType As Type, parameter As Object, language As String)
        As Object Implements IValueConverter.Convert
        If targetType Is GetType(Position) Then
            Return CType([Enum].Parse(GetType(Position), value.ToString()), Position)
        End If

        Return Nothing
    End Function

    Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, language As String)
         As Object Implements IValueConverter.ConvertBack
        Throw New NotImplementedException()
    End Function
End Class

    using C1.Chart;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.UI.Xaml.Data;

namespace SunburstQuickStart
{
    public class EnumToStringConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }

        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value.ToString();
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (targetType == typeof(Position))
                return (Position)Enum.Parse(typeof(Position), value.ToString());
            else
                return (Palette)Enum.Parse(typeof(Palette), value.ToString());
        }
    }
}
  5. Edit the <Grid> tag to the following markup to provide data to Sunburst.

    <Page
    x:Class="SunburstQuickStart.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:SunburstQuickStart"
    xmlns:Chart="using:C1.Xaml.Chart"
    xmlns:Xaml="using:C1.Xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <Grid.Resources>
            <local:EnumToStringConverter x:Key="PaletteConverter" />
        </Grid.Resources>
        <Grid.DataContext>
            <local:SunburstViewModel />
        </Grid.DataContext>
        <Chart:C1Sunburst x:Name="sunburst" 
                          Offset="0" 
                          ItemsSource="{Binding HierarchicalData}" 
                          Binding="Value" 
                          BindingName="Year,Quarter,Month" 
                          ChildItemsPath="Items" 
                          ToolTipContent="{}{name}&#x000A;{y}" 
                          Margin="91,0,0,356"  >
            <Chart:C1Sunburst.DataLabel>
                <Chart:PieDataLabel Position="Inside" 
                                    Content="{}{name}" 
                                    ConnectingLine="True" 
                                    Border="True">
                </Chart:PieDataLabel>
            </Chart:C1Sunburst.DataLabel>
        </Chart:C1Sunburst>
    </Grid>
</Page>

Step 3: Running the Application

Press F5 to run the application and observe how Sunburst chart appears.

 

 

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