Axis Title in WinUI Chart (SfPolarChart)

The Header property is used to define the title for the chart axis. It accepts any UIElement as content for the chart axis header.

XAML

<chart:SfPolarChart>
    <chart:SfPolarChart.PrimaryAxis>
        <chart:CategoryAxis/>
    </chart:SfPolarChart.PrimaryAxis>

    <chart:SfPolarChart.SecondaryAxis>
        <chart:NumericalAxis Header="Tree"/>
    </chart:SfPolarChart.SecondaryAxis>

    <!-- Configure additional chart elements -->
</chart:SfPolarChart>

C#

SfPolarChart chart = new SfPolarChart();
chart.PrimaryAxis = new CategoryAxis();
chart.SecondaryAxis = new NumericalAxis()
{
    Header = "Tree" 
};

// Configure additional chart elements

NOTE

The polar chart supports a title for the secondary axis only.

Style

The HeaderStyle property is used to provide style for the axis header.

XAML

<chart:SfPolarChart>
    <chart:SfPolarChart.PrimaryAxis>
        <chart:CategoryAxis/>
    </chart:SfPolarChart.PrimaryAxis>
    
    <chart:SfPolarChart.SecondaryAxis>
        <chart:NumericalAxis Header="Tree">
            <chart:NumericalAxis.HeaderStyle>
                <chart:LabelStyle 
                    FontFamily="Algerian"
                    FontSize="13"
                    Foreground="Black"/>
            </chart:NumericalAxis.HeaderStyle>
        </chart:NumericalAxis>
    </chart:SfPolarChart.SecondaryAxis>

    <!-- Configure additional chart elements -->
</chart:SfPolarChart>

C#

SfPolarChart chart = new SfPolarChart();

// Configure additional chart elements
LabelStyle style = new LabelStyle()
{
    FontFamily = new FontFamily("Algerian"),
    FontSize = 13,
    Foreground = new SolidColorBrush(Colors.Black)
};

chart.PrimaryAxis = new CategoryAxis();
chart.SecondaryAxis = new NumericalAxis()
{
    Header = "Tree",
    LabelStyle = style
};

// Configure additional chart elements

Template

The appearance of the header can be customized using the HeaderTemplate property.

XAML

<chart:SfPolarChart x:Name="chart">
    <chart:SfPolarChart.Resources>
        <DataTemplate x:Key="headerTemplate">
            <Border 
                BorderBrush="Blue"
                CornerRadius="5"
                BorderThickness="1">
                <TextBlock
                    Text="{Binding}"	            
                    FontSize="12"			   
                    Margin="3"
                    FontStyle="Italic"
                    FontWeight="Bold"/>
            </Border>
        </DataTemplate>
    </chart:SfPolarChart.Resources>

    <chart:SfPolarChart.PrimaryAxis>
        <chart:CategoryAxis/>
    </chart:SfPolarChart.PrimaryAxis>
    <chart:SfPolarChart.SecondaryAxis>
        <chart:NumericalAxis Header="Tree" HeaderTemplate="{StaticResource headerTemplate}"/>
    </chart:SfPolarChart.SecondaryAxis>

    <!-- Configure additional chart elements -->
</chart:SfPolarChart>

C#

SfPolarChart chart = new SfPolarChart();

// Configure additional chart elements
chart.PrimaryAxis = new CategoryAxis();

// The 'headerTemplate' resource is defined in XAML Resources and referenced here.
chart.SecondaryAxis = new NumericalAxis()
{
    Header = "Tree",
    HeaderTemplate = chart.Resources["headerTemplate"] as DataTemplate
};