Field that is only edited when creating a record

[ranorga]

Dear community:

Is there a way to make a field only editable at record creation time and not after?

I have tried to do it by creating a field of type Changecounter, but this does not work when the user decides to add data in a Ref table through the form, because the app counts it with an edition.

So far what has worked for me is creating a field that updates when saving and that update is detected so that when returning to the record it cannot be edited. However this means adding one more change to every change within the app, which I think reloads the app. Do you know any other way?

[Marc_Dillon]

editable_if =

NOT( IN( 
  [_THISROW] ,
  FILTER( #table# , TRUE )
))

[ranorga]

Thank you very much @Marc_Dillon !