How do I make a button appear only if certain conditions are met

[Chris Hump]

I am creating a form in which the user (student) has to make selections from 7 choices (each 10 or 20 credits) which must equal a total of 30 credits.

I want the save button to appear only if this criteria has been met. What is the best way of doing this?

Thanks.

 

[Rabbie]

Set the .visible property of the button to True when the condition is met otherwise set it to False

 

[The_Doc_Man]

When making the save button invisible (.VISIBLE=FALSE), also disable it (.ENABLED=FALSE). Fewer accidents that way due to stray clicks.