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to trigger the error if second record is checked.

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Posted on by Dineshkarlekar

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hi ,

Everyone ,

I am having one checkbox field on form which is table field yesno so i want only single record on the form to be checked it should trigger error , how can i get it done plz guide me on this ,below is my form

thanks,

Regards,

Dinesh

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Mohamed Amine Mahmoudi 26,390 Super User 2025 Season 2 on at

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to trigger the error if second record is checked.

Hi @Dineshkarlekar,

You must use the validateWrite method.

Best regards,

Mohamed Amine MAHMOUDI

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Dineshkarlekar 1,836 on at

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to trigger the error if second record is checked.

hi ,

Thanks for reply ,

I am having issue if i write the code on validate it will check for current record , do i have to use loop or any condition to compare it with previous checked record ,can you please help me on this .

thanks ,

Regards

Dinesh

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Martin Dráb 237,640 Most Valuable Professional on at

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to trigger the error if second record is checked.

Stop for a moment about what you want to achieve. Then you'll be able to answer questions like whether you need a loop for anything.

You want to check if there is a record in database that has the checkbox ticked and it's not the current record. The way how you can query data is using a select statement. For example:

if (this.Checked) { select firstOnly RecId from myTable where myTable.Checked && myTable.RecId != this.RecId; if (myTable.RecId) { ok = checkFailed(...); } }

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Mohamed Amine Mahmoudi 26,390 Super User 2025 Season 2 on at

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to trigger the error if second record is checked.

Hi @Dineshkarlekar,

try this :

boolean validateWrite() { boolean ok; MyTable myTable; ok = super(); if(this.checked) { select myTable where myTable.checked == NoYes::Yes && myTable.RecId != this.RecId; if(myTable) { ok = checkFailed(strFmt("Erreur !")); } } return ok; }

Best regards,

Mohamed Amine MAHMOUDI

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Layan Jwei 8,097 Super User 2025 Season 2 on at

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to trigger the error if second record is checked.

Hi Dinesh,

Your explanation for the requirement is not very clear. If I understood correctly, only one record in the table can have Checked =yes?

Would you like the error to appear when you directly tick the box and navigate to another field? In this case you can use the validateField method

or if you would like the error to appear when you click save, then you can use validateWrite method

And yes you need to check that current record recId is not equal to the record where the checked field is yes. In order to know if there is more than one record with checked =yes

Thanks,
Layan Jweihan

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Layan Jwei 8,097 Super User 2025 Season 2 on at

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to trigger the error if second record is checked.

Hi,

Is your question answered? If yes, then please verify the answers that helped.

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Deepak Agarwal 8,598 on at

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to trigger the error if second record is checked.

Why not to use an ENUM for Purhcase type, by that way you will alwasys select just one value and you can avoid all other things.

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