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"Stuart Dickerson" <> wrote in message
news:...
> I am converting an ASP application to ASP.NET and certain client
> functionality must remain.
>
> I have a Javascript function that manipulates a ListBox (which renders
> as a Select and Options). When I use Client-Side JS to change the
> values, the changes are not accessible when the form is submitted to
> the server.

The only part of a <select> which is POSTed to the server is the selected
<option>.

You can put client-side values into a hidden field, or into a cookie.
--
John Saunders
Internet Engineer