Workvook.SetLicenseKey throws Invalid license key on turkish locale

Posted by: ivan.dimitrov on 23 June 2022, 11:35 pm EST

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    Posted 23 June 2022, 11:35 pm EST


    We are using Workbook.SetLicenseKey to license the GrapeCity.Documents.Excel in WinForms application and the produced application is licensed correctly and running correctly on machines with english locale. Changing the locale to Turkish and running the same application Workbook.SetLicenseKey throws ‘Invalid license key’. Reverting back to English locale and the application works again. From my understanding it may somehow be related with ‘I’ symbol in the license key( which for example breaks azure function names in turkish locale).

    Best regards,


  • Posted 26 June 2022, 8:54 pm EST


    This issue has been replied over the Support Ticket: CAS-32352-S1X9C1, please continue the thread there only to avoid confusion.

    You can find the case on the following location:


    Prabhat Sharma.

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