Setting License Key in Web.config

Actualizado:junio 1, 2025

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The problem has been resolved as of IronQR version 2024.3.2.

Exception: Unhandled exception. IronSoftware.Exceptions.LicensingException: IronQR must be licensed for development.

For older IronQR versions, specifically those released before version 2024.3.2, there is a known licensing issue in:

ASP.NET projects
.NET Framework version >= 4.6.2

The key stored in a Web.config file will NOT be picked up and used by the product.

Workaround

To address this issue, it is recommended to retrieve the license key from the Web.config file using ConfigurationManager in the code, and then apply it to the License.LicenseKey property.

Example:

<configuration>
  ...
  <appSettings>
    <add key="IronQR.LicenseKey" value="IronQR-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

<configuration>
  ...
  <appSettings>
    <add key="IronQR.LicenseKey" value="IronQR-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

XML

With the XML file provided above, we can use ConfigurationManager to retrieve the license key value and pass it to the IronQR.License.LicenseKey property.

using System.Configuration;

// Retrieve the license key from the Web.config file's appSettings section
string licenseKey = ConfigurationManager.AppSettings["IronQR.LicenseKey"];

// Apply the retrieved license key to the IronQR LicenseKey property
IronQR.License.LicenseKey = licenseKey;

using System.Configuration;

// Retrieve the license key from the Web.config file's appSettings section
string licenseKey = ConfigurationManager.AppSettings["IronQR.LicenseKey"];

// Apply the retrieved license key to the IronQR LicenseKey property
IronQR.License.LicenseKey = licenseKey;

Imports System.Configuration

' Retrieve the license key from the Web.config file's appSettings section
Private licenseKey As String = ConfigurationManager.AppSettings("IronQR.LicenseKey")

' Apply the retrieved license key to the IronQR LicenseKey property
IronQR.License.LicenseKey = licenseKey

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Curtis Chau

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Escritor Técnico

Curtis Chau tiene una licenciatura en Ciencias de la Computación (Carleton University) y se especializa en el desarrollo front-end con experiencia en Node.js, TypeScript, JavaScript y React. Apasionado por crear interfaces de usuario intuitivas y estéticamente agradables, disfruta trabajando con frameworks modernos y creando manuales bien ...

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