README.md

How-to-customize-the-appearance-of-axis-labels-in-WPF-Chart

This sample demonstrate how to customize the appearance of axis labels in WPF Chart.

WPF SfChart supports customizing the appearance of the axis labels using the LabelTemplate property of the Chart axis with the following steps:

Step 1: Initialize a data model that represents a data point for the Chart.

[C#]

public class ChartModel
{
	public string XValue { get; set; }
	public double YValue { get; set; }
}

Step 2: Create a ViewModel class with a data collection property to render chart.

[ViewModel]

public class ViewModel
{
	public ObservableCollection<ChartModel> Data { get; set; }

	public ViewModel()
	{
		Data = new ObservableCollection<ChartModel>()
		{
			new ChartModel(){XValue = "Jewelry", YValue = 2000},
			new ChartModel(){XValue = "Electronics", YValue = 1500},
			new ChartModel(){XValue = "Research", YValue = 1300},
			new ChartModel(){XValue = "Investment", YValue = 1700 },
			new ChartModel(){XValue = "Purchases", YValue = 1000},
		};
	}
}

Step 3: Customize the axis labels using LabelTemplate property of the Chart axis.

[XAML]

<chart:SfChart>

  <chart:SfChart.PrimaryAxis>
      <chart:CategoryAxis ShowGridLines="False">
           <chart:CategoryAxis.LabelTemplate>
              <DataTemplate>
                  <Border Padding="3" Background="LightGreen" CornerRadius="4" >
                      <TextBlock Text="{Binding LabelContent}"
                                  FontWeight="Bold" Foreground="Black"/>
                  </Border>
              </DataTemplate>
          </chart:CategoryAxis.LabelTemplate>
      </chart:CategoryAxis>
  </chart:SfChart.PrimaryAxis>

  <chart:SfChart.SecondaryAxis>
      <chart:NumericalAxis Maximum="2500">
              <chart:NumericalAxis.LabelTemplate>
              <DataTemplate>
                  <Border Padding="3" Background="LightGreen" CornerRadius="4" >
                      <TextBlock Text="{Binding LabelContent}"
                                  FontWeight="Bold" Foreground="Black"/>
                  </Border>
              </DataTemplate>
          </chart:NumericalAxis.LabelTemplate>
      </chart:NumericalAxis>
  </chart:SfChart.SecondaryAxis>

  <chart:ColumnSeries ItemsSource="{Binding Data}" 
                      XBindingPath="XValue" 
                      YBindingPath="YValue"
                      Palette="Metro">
      <chart:ColumnSeries.AdornmentsInfo>
          <chart:ChartAdornmentInfo ShowLabel="True" />
      </chart:ColumnSeries.AdornmentsInfo>
  </chart:ColumnSeries>
</chart:SfChart>

Output:

Troubleshooting

Path too long exception

If you are facing path too long exception when building this example project, close Visual Studio and rename the repository to short and build the project.