Palette in WPF Sunburst Chart (SfSunburstChart)

17 Aug 202111 minutes to read

Sunburst chart provides support to apply different types of palettes. You can define the palettes by using Palette property.

We have some predefined palette such as

• Metro
• AutumnBrights
• FloraHues
• Pineapple
• TomotoSpectrum
• RedChrome
• PurpleChrome
• BlueChrome
• GreenChrome
• Elite
• LightCandy
• SandyBeach

Applying palette to the chart

Each palette applies a set of predefined brushes to the sunburst chart in a predefined order. The following code shows how to set predefined palette for sunburst chart.

XAML

<sunburst:SfSunburstChart ItemsSource="{Binding Data}" ValueMemberPath="EmployeesCount" 
                                 Palette="SandyBeach" >

            <sunburst:SfSunburstChart.Levels>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="Country"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobDescription"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobGroup"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobRole"/>
            </sunburst:SfSunburstChart.Levels>

        </sunburst:SfSunburstChart>

C#

SfSunburstChart sunburst = new SfSunburstChart();
            sunburst.ValueMemberPath = "EmployeesCount";
            sunburst.SetBinding(SfSunburstChart.ItemsSourceProperty, "Data");
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "Country" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobDescription" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobGroup" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobRole" });

            sunburst.Palette = SunburstColorPalette.SandyBeach;           
            grid.Children.Add(sunburst);

Custom Palette

Sunburst chart provides option which enables you to define your own color brushes with your preferred order for the Palette, using ColorModel as shown in the following code example.

XAML

<sunburst:SfSunburstChart ItemsSource="{Binding Data}" ValueMemberPath="EmployeesCount" 
                               Palette="Custom"   >

            <sunburst:SfSunburstChart.Levels>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="Country"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobDescription"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobGroup"/>
                <sunburst:SunburstHierarchicalLevel GroupMemberPath="JobRole"/>
            </sunburst:SfSunburstChart.Levels>

      <sunburst:SfSunburstChart.ColorModel>
                <sunburst:SunburstColorModel>                    
                    <sunburst:SunburstColorModel.CustomBrushes>
                        
                        <LinearGradientBrush>
                            <GradientStop Color="DeepPink" Offset="0"/>
                            <GradientStop Color="Gray" Offset="1"/>
                        </LinearGradientBrush>
                        
                        <LinearGradientBrush>
                            <GradientStop Color="Green" Offset="0"/>
                            <GradientStop Color="Yellow" Offset="1"/>
                        </LinearGradientBrush>

                        <LinearGradientBrush>
                            <GradientStop Color="Orange" Offset="0"/>
                            <GradientStop Color="Brown" Offset="1"/>
                        </LinearGradientBrush>

                        <LinearGradientBrush>
                            <GradientStop Color="DarkViolet" Offset="0"/>
                            <GradientStop Color="White" Offset="1"/>
                        </LinearGradientBrush>

                    </sunburst:SunburstColorModel.CustomBrushes>
                    
                </sunburst:SunburstColorModel>                
            </sunburst:SfSunburstChart.ColorModel>
        </sunburst:SfSunburstChart>

C#

SfSunburstChart sunburst = new SfSunburstChart();
            sunburst.ValueMemberPath = "EmployeesCount";
            sunburst.SetBinding(SfSunburstChart.ItemsSourceProperty, "Data");
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "Country" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobDescription" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobGroup" });
            sunburst.Levels.Add(new SunburstHierarchicalLevel() { GroupMemberPath = "JobRole" });

            sunburst.Palette = SunburstColorPalette.Custom;

            SunburstColorModel colorModel = new SunburstColorModel();
            LinearGradientBrush brush1 = new LinearGradientBrush();
            brush1.GradientStops.Add(new GradientStop() { Color = Colors.DeepPink, Offset = 0 });
            brush1.GradientStops.Add(new GradientStop() { Color = Colors.Gray, Offset = 1 });

            LinearGradientBrush brush2 = new LinearGradientBrush();
            brush2.GradientStops.Add(new GradientStop() { Color = Colors.Green, Offset = 0 });
            brush2.GradientStops.Add(new GradientStop() { Color = Colors.Yellow, Offset = 1 });

            LinearGradientBrush brush3 = new LinearGradientBrush();
            brush3.GradientStops.Add(new GradientStop() { Color = Colors.Orange, Offset = 0 });
            brush3.GradientStops.Add(new GradientStop() { Color = Colors.Brown, Offset = 1 });

            LinearGradientBrush brush4 = new LinearGradientBrush();
            brush4.GradientStops.Add(new GradientStop() { Color = Colors.DarkViolet, Offset = 0 });
            brush4.GradientStops.Add(new GradientStop() { Color = Colors.White, Offset = 1 });

            colorModel.CustomBrushes.Add(brush1);
            colorModel.CustomBrushes.Add(brush2);
            colorModel.CustomBrushes.Add(brush3);
            colorModel.CustomBrushes.Add(brush4);

            sunburst.ColorModel = colorModel;
            grid.Children.Add(sunburst);

NOTE

Before applying the color model, you need to set the palette value as Custom.