I'm quite new in C#. What I want is the following:

I have two comboboxes:

* In the first one I have all the standard languages (en, de, fr, ...)
* And in the second one I want to get the regional languages form the selected language in the first combobox (if I would select "en" then there should be listed "en-US", "en-GB", ...)

Can anyone help me with that? :D

Greez
Arion