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Bug Report T101084
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It is impossible to invoke a validation method 'ValidateAssociation' after updating from 12.2

created 11 years ago

After upgrade, i still can build the project fine, no problem, i can run the application also, no error.
But when i open this "ORMDataModelDPKG.xpo" file, and try to edit it (add new xpobject or field), then try to save, it show error
"Invoke validation method 'ValidateAssociation' failed due to a null reference being accessed."

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Answers approved by DevExpress Support

created 11 years ago

We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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    Other Answers

    created 11 years ago

    Just as an alternate workaround, you can upgrade model from database, It
    solved my problem, and now I can edit the model without problem.
    Anyways, I'll also try your fix once you published.

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