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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / How to make a field re...
Small and medium business | Business Central, N...
Suggested Answer

How to make a field required

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Posted on by Andrew Esther 35

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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  • Suggested answer
    JAngle Profile Picture
    JAngle 157 on at

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

  • tanya07 Profile Picture
    tanya07 1,638 on at

    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;

  • Suggested answer
    Salah Eddine BENOUALA Profile Picture
    Salah Eddine BENOUALA 485 on at

    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);


    -----------------------------------------

    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.

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