i need to have a dropbox inactive until the relevant radiobutton is selected, then the dropdown becomes active and useable.
radiobutton - "Group1" - "Choice3"
Dropdown - "Dropdown1"
i know nothing of java - so your help is greatly needed
Try this as the custom calculation script for the combo box:
event.target.readonly = getField("Group1").value === "Choice3" ? true : false
Retrieving data ...