I customized a list form via JSON to sort the entries for the user. Now I want to modify a text in the header based on if there's an attachment in that list item or not.
I already included the attachment-column in my list. My code (not working) so far is:
"txtContent": "=if([$Attachments] == 0, 'no attachment', 'item has attachment')"
I also tried to put the number in '', changed it to true and false. Nothing works.
This is a known behavior of JSON list formatting in SharePoint. Unfortunately, the "Attachments" field is not directly accessible in JSON list formatting.
Similar thread: Clickable href with the attachments
Documentation: Use column formatting to customize SharePoint
Update:
Attachments column is now supported in JSON formatting. Check documentation: Supported column types
You can use the expression like this:
"txtContent": "=if([$Attachments] == '0', 'no attachment', 'item has attachment')"
