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How to make a field required

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Posted on by Andrew Esther

I can see in the AL that you can set the NotBlank field attribute to make a field required. If I was creating a custom field then I could make it required however I cannot modify this attribute on stock fields. I have a customer that would like a stock field made required. How can I make a work-around for this? I figure I would need to in a page extension create a OnInsert or OnUpdate validation logic but I don't see any documentation on how to do this properly.

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Salah Eddine BENOUALA 485 on at

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RE: How to make a field required

Hi Andrew,

You can give you field as parameter to TESTFIELD function where you want to control empty value.

If it is empty it will automatically trigger an error.

TESTFIELD(stock);

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Best Regards,

Salah Eddine BENOUALA

Dynamics NAV & 365 Business Central Consultant

Please verify my answer, if you find it helpful.

Doing so you'll show others that there was found a solution and you credit my help.
tanya07 1,615 on at

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RE: How to make a field required

Hope this suggestion helps to make a field mandatory/required on page level , we could simply use OnQueryClosePage() trigger where you could use a logic like this :

IF stock <> ' ' THEN

ERROR('Fill the required field');

END;
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JAngle 63 on at

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RE: How to make a field required

This post might be worth looking at: mohana-dynamicsnav.blogspot.com/.../how-to-modify-existing-field-and-action.html