could someone point out a document / blog or tell me the best practice in order to do the following.
Within a form, we want to be able to select in a drop down list an element (exp : male / female) and according to the choice,
fill the second drop down list (which is also in the same form) with the data that is associated to this selection for example , products for males if males were selected.
Before you select anything in the first dropdown, the second one should be empty.
Then you could go on as follows... selecting another item and the next drop down list being filled...
If you change your selection in the first dropdown the other drop downs should be reinitalized...