# Value and Symbology

The symbology determines how the Barcode information is encoded into the image.

The Barcode exposes a `Value` property that is used to set the barcode data presented by the control. It determines the way the data will be visualized by using one of the common barcode specifications. To set the desired type of visualization, use the `Symbology` property of `RadBarcode`.

The most common symbologies that are supported by Barcode are:

* EAN13
* EAN8
* UPC-A
* UPC-E
* Code39
* QRCode
* PDF417

For more details on the available Telerik UI for WinUI Barcode symbologies, refer to the articles on [supported 1D](https://www.telerik.com/winui/documentation/controls/radbarcode/1d-barcodes/1dbarcode-overview) and [2D Barcode types](https://www.telerik.com/winui/documentation/controls/radbarcode/2d-barcodes/2dbarcode-overview).

The following example shows how to use the `Code39` symbology class.

#### **Code39 symbology**

```XAML
<Grid Background="White" xmlns:telerikDataViz="using:Telerik.UI.Xaml.Controls.DataVisualization">
	<telerikDataViz:RadBarcode Width="250" Height="150" Value="58000106" Foreground="Black" 
								HorizontalAlignment="Center" VerticalAlignment="Center">
		<telerikDataViz:RadBarcode.Symbology>
			<telerikDataViz:Code39 HorizontalTextAlignment="Center"
							SizingMode="Stretch" 
							ShowText="True"  
							CodeTextSpacing="10"/>
		</telerikDataViz:RadBarcode.Symbology>
	</telerikDataViz:RadBarcode>
</Grid>
```

**A Barcode with applied 1D Code39 symbology**

![WinUI RadBarcode Barcode Symbology](https://www.telerik.com/winui/documentation/assets/bbadc7b83b21d22b135b7fe83caae279/barcode_setsymbology_1.png)