FlexChart for WPF is an impeccable data visualization component in terms of performance, presentation, and overall quality. The control offers the following features:

1. Automatic Legend generation: Just specify the name of the series, and the Legend is displayed automatically.
   
   
2. Axis labels automatic rotation: Let long axis labels get rotated automatically, thereby rendering a clean appearance.
   
   
3. Axis Grouping: Group the axis labels while working with any kind of data (categorical, numeric or date time) for better readability and analysis.
   
   
4. Chart export: You can export your application to different formats, such as SVG, JPG, and PNG.
   
   
5. DirectX support: The DirectX rendering is a high performance rendering mode of FlexChart that is useful when plotting large or dynamic data. It can be enabled with FlexChart.RenderMode property. FlexChart supports rendering through Direct2D which is a part of DirectX.
          
   
6. Flexible data labels: Set offset, border, and position for data labels. The control also provides various options to manage overlapping of data labels such as automatic arrangement, hiding overlapped data labels and, rotation.
   
   
7. In-built selection support: Click on the chart and select either a single data point or an entire data series.
   
   
8. Interpolate nulls: Handle null values in line and area charts effectively by using the InterpolateNulls property.
   
   
9. Legend wrapping: Let the Legend items appear in several rows and columns depending upon the available space.
   
   
10. Multiple chart types: Add as many series as you want in a single chart. Set the desired chart type at each series, and thus integrate multiple chart types in a single chart.
    
    
11. Pre-defined and custom palettes: Choose from a number of pre-defined palettes or apply a custom palette to the chart.
    
    
12. Powerful and flexible data binding: Specify data source either at the series level or the chart level, as per your requirements. You can combine multiple data sources in a single chart as well.
    
    
13. Series toggling: Toggle the visibility of a series in the plot as well as the legend by using the LegendToggle property.
    
    
14. Simple to use: It is simple to work with the FlexChart control due to its clear object model.
    
    
15. Stacked or 100% stacked charts: Make a chart stacked or 100% stacked by setting just one property. 
    
    
16. Support for categorical, numerical, and data or time axis: Bind to different data types ranging from int, float, and string to DateTime.
    
    
17. ToolTip customization: Leverage powerful tooltip customization features.
    
    
18. Flexible data labels: Set offset, border, and position for data labels. The control also provides various options to manage overlapping of data labels such as automatic arrangement, hiding overlapped data labels and, rotation.