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Form data field extension: modified method override

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Posted on by DAX Dev

Hi,

I want to apply logic to the modified method of datasource's field.

I created a formdatafieldstr extension class.

Placed the COC modified method there, but it is not executed (breakpoint isn't hit).

Probably this is because, that on the form itself the modified method isn't overriden (?).

So, how can I have the modified method? I thought maybe I should just have it in my extension class without calling the "next", but in this case I have an error that CoC needs the call to next.

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André Arnaud de Cal... 303,730 Super User 2026 Season 1 on at

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Hi DAX Dev,

Have you also considered extending the table event? Do you really need it on form level?

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Sergei Minozhenko 23,095 on at

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Hi DAX Dev,

Could you, please, share full code of your extension class and what F&O are you using? CoC should work even if method is not overriden on the form itself.

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DAX Dev on at

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[ExtensionOf(formDataFieldStr(InventJournalTransfer, InventDimIssue, InventLocationId))]

final class InventJournalTransferxxx_Extension

{

public void modified()

{

---My Code Here---

next modified();

---My Code Here---

}

}

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DAX Dev on at

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Hi Andre,

sure.

Just want to know what to do if I want to override a method.

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Sergei Minozhenko 23,095 on at

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Hi DAX Dev,

Have you tried to rebuild the project and check it again? And what F&O version are you using? At least it's working in 10.0.10

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DAX Dev on at

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Hi Sergei,

yes, I built the model with all references.

I'm using 10.0.9

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Sergei Minozhenko 23,095 on at

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Hi DAX Dev,

Just to double-check, you want to change the warehouse on line level and apply custom logic? Not on the header level?

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DAX Dev on at

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Hi Sergei,

as it is possible to modify the warehouse on line level, I would like to apply some validation steps.

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