I had a problem to display the list box object. I do not want the un-selected value be gray, And seems the "Show Alternatives" can help. But in my list this option is gray. May I know how to make it available again?
@Alessandro, you caught the point. Yes, I use Expression. But the filed is a conditional show Filed, and expression is needed. Otherwise, 7 more list box objects need to be created to display each Filed. And I do not think that is a good idea.