concerning my item/my schema

[ngiraudon]

hello, I am blocked on a form with a problem difficult to explain
I have a item that I want to present under a drop-down list but also as a
boolean.
I try to explain : on this item if in the case option is yes I can choose in
the drop-down list but if it's no the drop-down list which is in a section
disappears ....
I hope you understand my problem.
How I can present this in a correct schema xsd ????

 

[ngiraudon]

In fact what I want to do walk in Infopath there is not the problem but I
fear which the generated schema is not coherent with fields which are not
justified: my case option (boolean) shouldn't be in the schema.
How to make?