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In This Article

Barcodes

Barcode rendering is provided by the BarcodePresenter control, which works with symbology objects to encode and display barcode formats. In addition to standard barcode presentation features, barcodes can be styled with custom brushes, gradients, and QR Code-specific shape customization.

Screenshot

Some of the barcodes provided by this product

How It Works

The barcode architecture uses a two-part model:

  • BarcodePresenter control - Displays the barcode and exposes presentation settings.
  • Symbology objects - Encode values and expose symbology-specific properties.

Key Concepts

Reusing Symbologies

For optimal memory usage, create one symbology instance and reuse it across multiple BarcodePresenter controls.

The symbology instances could be declared in XAML resources and referenced with StaticResource, referenced using a binding to a view model (example below), etc.

xmlns:actipro="http://schemas.actiprosoftware.com/avaloniaui"
...
<!-- SharedSymbology defined in XAML resources elsewhere -->
<StackPanel Spacing="20">
	<actipro:BarcodePresenter Value="ABC123" Symbology="{Binding SharedSymbology}" />
	<actipro:BarcodePresenter Value="XYZ789" Symbology="{Binding SharedSymbology}" />
</StackPanel>

Symbology-Specific Properties

Each symbology type has its own set of configurable properties. Set these properties on the symbology object, not on BarcodePresenter control.

Presentation and Styling

Use BarcodePresenter for presentation-related settings such as header content, theme-aware colors, foreground and background brushes, along with module styling and accent brushes for QR Code and Micro QR Code.

See Presenter Customization for details on using custom brushes, gradients, and module shapes.

Available Symbologies

  • 2D Symbologies
  • Linear (1D) Symbologies
    • EAN-13 and EAN-8, both with supplements
    • UPC-A and UPC-E, both with supplements
    • Code 128 and GS1-128
    • Code 39 and Extended variation
    • Code 93 and Extended variation
    • Interleaved 2 of 5 and ITF-14
    • Codabar

Getting Started with Barcodes

  • Refer to the Getting Started topic for the Data Visualization product to ensure your project is properly configured.
  • See the Barcode Basics topic for an introduction on how to create your first barcode.