Goal: Combine radio group and drop down listbox. If option one of the radio group is selected, then require a selection from the drop down list box. If option 2 of the radio button is selected, disable the drop down listbox or ignore.

If I create a user control combining a radio group and a listbox can I validate values in both controls with the standard validation tools? E.g. checking that value from drop down listbox selected when option 1 of radio group selected.

I do not want to use custom validators because of difficulty getting the client side script to work with master pages.

mm.. why is dificult the client script?? just don't writte in on the master page, write in the secondary page anywhere... it will work if you use an script tag...

if you create an user control, will it go from client to server on every click from the user??

HTH

Gonzalo