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Hi Odooers,

I want  "Btn eval" to be invisible when "QA Checking products" field (a many2many field) is empty. 

With codes below, the "Btn eval" is still showing. Please correct me if I am wrong in the xml codes

invisible="qa_check_product_ids == False"






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Best Answer

Hello,

You could try this instead:invisible="not qa_check_product_ids"


Hope it helps.

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Author Best Answer

Thank all of you. I use the following and now the result is expected.

invisible="not qa_check_product_ids"


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Nice, up vote the answer or mark best one maybe

Best Answer

You can try

"not qa_check_product_ids". Normally relation field like many2one or x2m will use "not"

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Hi,

The expression qa_check_product_ids == False won't work as expected because many2many fields are represented by a list, and an empty list is not equal to False. Instead, you need to check if the list is empty.

You can try it like that:


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