What I want to do seems pretty simple, yet...

I want a form to be reloaded (or called), when a certain field changes. Typically, I want to call a form when the user changes a select field. However, although the method to load the new view is called, the form is never loaded. It simply won't do a thing.

I've tried several combinations but nothing seems to work. Now, with a button, this works, but a button always causes the form to be saved and, in this case, this cannot happen.

Has anyone come across such a problem? (and solved it)