Not a lot to go on Vicky (it's always best to give people some code fragments to see what you are doing), but I'll try to help.
What, exactly, is null? The combo/radio values? Table values? Link value? I'll try to quickly cover all the bases.
Obvious question: Do you have getters AND setters for each value? e.g.
Is you bean still in scope (it's not "Request" scope or something)?
Next, is it just one bean for everything; or is the bean handling the action a separate one? If it's separate, then you'll need to get access to the bean that knows the values for you combos and radio button. There may be a better way (I'm new to
JSF too) but this is what I do:
You can now simply do "otherBean.getCombo1Value()" (or whatever).
Finally, remember that you can pass parameters to a actions.
and then access it like this
i hope this helps,
J.