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Maintain 14.2 Windows Forms Components With 15.2 License



We are currently maintaining an application developed with Infragistics v14.2. We have the license for v15.2 and noticed that when we try to update components that were originally made in v14.2 we see  ambiguity conflicts DLLs from versions but we are unable to modify controls.


Is there a way to these components created in v14.2 with the v15.2?  Can they coexist in the same namespace?


If this is not possible what are the alternatives we have?




  • 21795
    Offline posted

    Hi Rafa,

    Thank you for posting in our forum.

    If I understand you correctly you have application build with Infragistics 14.2. Now you purchase Infragistics 15.2, you have added same libraries in your application and you get an error. This is expected behavior. If you do need to have both 14.2 and 15.2 assemblies in one project you will need to use aliases. Please follow the next link to MSDN where is shown how you can use global namespace aliases .

    However if you do not need to have both 14.2 and 15.2 assemblies in same project you may consider these two approaches:

    • Upgrade your project to version 15.2. This way you will deal only with 15.2 libraries. Please follow the next link where you may find information how to upgrade your project with Infragistics Project Upgrade Utility

    • If for some reason you cannot upgrade your project to version 15.2 you may download and install version 14.2 and work with this version. To be able to get older version of Infragistics Controls you need to register a key in your account in our web site. With purchase of Infragistics 15 Volume 2 you have gained access to all previous version of Infragistics Controls, so you need only a new key. In order to receive a license key you need to contact our sales department here

    Please let me know if you need any additional information.

    Thank you for using Infragistics Controls.