check modification of field

[Mikelevich]

I want to check that once a new record is created and a particular field ('Events') is entered into, that if subsequently 'Events' is altered (but still contains text), that a warning message is displayed.

Can't figure how to check for modification of field and give message (or bar it if necessary)

Grateful for any help

[dkemme]

Under validation of the field, enter a calculation "not length(field_name)". This will give a warning whenever the field is changed unless was empty to begin with. If you select Allow User to Override, they will still be able to enter the changes.

[Mikelevich]

thanks - but that only works if the user has clicked outside the field. I want a way so that at the moment of entering new data a warning is generated.

At the moment I'm using the field also set as a button firing a script that checks against a calc field for any changes. Works okay - but requires two clicks into the field (I can't work out why yet).... so it's all a bit clunky.