Enable a button only if TEB has text

i want button enabled (or shown) if text entry box has text. what's simplest way of doing that?

perhaps blog post explain way:

http://blog.lilybiri.com/where-is-null

 

of course, need trigger launch advanced conditional action. using submit button and/or shortcut key teb? , suppose not validated. can on success teb.

• create button , set invisible (or disable it)
• create empty variable v_null
• create conditional action checks associated variable teb, if equal v_null, nothing has happen (no action), else show (or enable) button

 

lilybiri

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