Setting License Key in Web.config

更新日期:6月 1, 2025

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自 IronPDF 版本 2024.3.3 起，此問題已被解決。

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

For older IronPdf versions, specifically those between versions 2023.4.4 and 2024.3.3, there is a known licensing issue in:

ASP.NET 項目
.NET Framework 版本 >= 4.6.2

存儲在 Web.config 文件中的密鑰不會被產品識別和使用。

變通方法

為了解決此問題，建議在代碼中使用 ConfigurationManager 從 Web.config 文件中提取 License Key，然後將其應用於 License.LicenseKey 屬性。

範例：

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

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

XML

透過上面提供的 XML 文件，我們可以使用 ConfigurationManager 來檢索 License Key 值並將其傳遞給 IronPdf.License.LicenseKey 屬性。

using System.Configuration;

class Program
{
    static void Main()
    {
        // Retrieve the license key from the Web.config file
        string licenseKey = ConfigurationManager.AppSettings["IronPdf.LicenseKey"];

        // Apply the license key to the IronPdf library
        IronPdf.License.LicenseKey = licenseKey;

        // Additional processing can continue here
    }
}

using System.Configuration;

class Program
{
    static void Main()
    {
        // Retrieve the license key from the Web.config file
        string licenseKey = ConfigurationManager.AppSettings["IronPdf.LicenseKey"];

        // Apply the license key to the IronPdf library
        IronPdf.License.LicenseKey = licenseKey;

        // Additional processing can continue here
    }
}

Imports System.Configuration

Friend Class Program
	Shared Sub Main()
		' Retrieve the license key from the Web.config file
		Dim licenseKey As String = ConfigurationManager.AppSettings("IronPdf.LicenseKey")

		' Apply the license key to the IronPdf library
		IronPdf.License.LicenseKey = licenseKey

		' Additional processing can continue here
	End Sub
End Class

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