I have a project in which two combobox (Parent - Child) and when I select an item from combobox parent, using javascript, the child combobox client-side load on the server side but appears empty.
someone knows why this happens and how to solve it?
When you select an item in the parent drop-down in your javascript function do you call the trackChanges() and commitChanges() methods? These are required to save any javascript changes to the comboboxes viewstate when a postback occurs.