Ask how to realize conditional field in orchard 1.9

Topics: Customizing Orchard
Nov 3, 2015 at 8:48 AM
I want to have one conditional field for one content type item. The conditional field is like the option which you selected in parent field will decide what options would display in its associated sub field. There is this kind of conditional logic between parent and sub field. I know Taxonomy filed has similar logic relationship, but how to implement this conditional relationship into dropdown list. Kindly advise.