Original Post by JHarwood (Imported from Ardevia Forum)
I am not a developer but long time SharePoint power user and admin. I'm exploring the Pro version of Rich Forms but am having a difficult time understanding the expression coding in some instances. Canyou point me to any resources for learning more about the underlying code/logic and definitions?
For example, I'm trying to add in a visibility rule to a tab based on a field being populated vs blank. I have the logic as: ?[[_field_name]] != " "
Do I need a value in the quotes to denote "blank" or "null?"