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QR Code

The QRCode widget dynamically generates a QR code image from a text string. A mobile device's camera can then scan this QR code to retrieve the encoded string.

XML Fields

  • XPath identifies the value encoded in the QR image. The widget reads this value and never writes through the path.
  • Width and Height set the image dimensions in pixels. Both default to 50.
  • Hints provides contextual help and Rules contains conditional form behavior.

Choose a size that remains scannable in the form's actual layout; changing the dimensions does not alter the encoded value.

The QRCode widget is read-only; the value to be encoded is set process and cannot be modified by the user.

The dimensions of the QR code image can be customized using the Height and Width properties (in pixels). The default size is 50x50 pixels.

If QR code generation fails, the widget reports the generation error in its place.

Size

Width and Height attributes specifies the size of the QR code image in pixels.

Example

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<QRCode Width="100" Height="100" XPath="Field">
    <Hints><![CDATA[]]></Hints>
    <Rules />
</QRCode>