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How to Display Data Labels for Specific Points in .NET MAUI Cartesian Chart

This sample demonstrates how to show data labels only for selected data points in a .NET MAUI SfCartesianChart using Syncfusion controls. This technique helps reduce visual clutter and improves readability, especially in charts with many data points.

What You'll Learn

  • How to associate each data point with a ShowLabel property to control label visibility.
  • How to apply business logic to determine which points should display labels.
  • How to bind data to the chart and use a LabelTemplate for conditional label rendering.

Key Steps

  1. Add a ShowLabel Property - Each data point includes a flag to indicate whether its label should be shown.

  2. Apply Business Logic - Set ShowLabel based on conditions like value thresholds or specific indices.

  3. Bind Data to Chart - Connect your data source to the chart and enable data labels.

  4. Use a LabelTemplate - Customize label appearance and visibility using data binding.

Benefits

  • Keeps the chart clean and focused.
  • Adapts easily to different scenarios (e.g., highlight outliers).
  • Ensures UI reflects business logic dynamically.

Output:

Screenshot 2025-10-27 174441

Troubleshooting

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

For a step-by-step procedure, refer to the How to display data labels for specific data points in .NET MAUI Cartesian Chart? KB article.