In my current project, I have a nested set of regions composed as follows:
World
Europe
Germany
Italy
Spain
...
America
...
...
I'm looking for a Javascript based choice-widget for HTML which provides multiple selections for nested sets. If the user for instance selects "Europe", all sub-regions have to be selected. Otherwise, redundant selections would be possible. You can see this kind of widget in some installers when selecting packages.
I didn't find anything useful yet
Few months ago I looked for the same answer. After hours of searching I wrote my own code based on onchange
events and each
loops (jQuery).