Hide and show other controls based on the drop down value using Orbeon Builder

Question

How to create form using Orbeon builder, where user can select value from a drop down and based on the selection the user can see other controls get rendered (probably hidden/shown).

Answer 1

1. First, give a meaningful name to that dropdown field; say gender.
2. Click on the Edit Choices icon for that field, just below the Control Details icon, and in the dialog assign meaningful values to each choice. Those are the values you'll refer to in step 3.
3. Finally, in the Control Details for the other field, under the Formulas tab, if you want that field to only be shown if the value of the gender field is female, enter the XPath expression $gender = 'female'.