Free Text Entry -Text Validation

[wdolphin]

How would I write an Advanced Action for a text entry box where user can type in anything as as long as they type some text in the box.  I need to make sure they are not just hitting enter?  

[RodWard · Accepted solution]

You need to create a User Variable with no value (call it something like v_NULL) and then use this in a Conditional Advanced Action to validate the Text Entry Box.

[Lilybiri]

Maybe this pretty old article (still valid!) can help you:

Where is Null? - Captivate blog