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@OutputCache interferes with radio button list's AutoPostBack
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Peter G (VIP)
I'm having a problem with a radio button list which uses its AutoPostBack
feature to build a drop down list at run time. If I use the <%@ OutputCache
Duration="30" Location="Server" VaryByParam="none" %> to cache my form the
list's SelectIndexChanged causes the page to refresh to the state it was in
upon the first change (ie. the first auto-postback event). So, if I fill in
some of the form and select a radiobutton from the list and then change some
other part of the form and generate another postback the page refreshes to
the state it was in on the fist postback.

Any ideas or soultion are greatly appreciated!
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bruce barker
if you cache the page, the viewstate is not kept current. you should turn
off viewstate support on the page (or any cached page). as SelectIndexChange
will no longer fire, you will have to detect it yourself.

hint: storing prev value in a temp field will also not work due to the
cache.

-- bruce (sqlwork.com)

"Peter G" <Peter Click here to reveal e-mail address> wrote in message
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Peter G (VIP)
Cheers Bruce. Tried disabling viewstate and same thing was happening. Then I
took out the @OutputCache directive and the SelectedIndexChanged still fired
and was caught by all list buttons clicked but the first one. Not sure if
this was what you were alerting me to so as to detect it myself.

Doesn't look like its going to work so I'm thinking of going about it not
using the cache to store the state by saving the info on the session in a
Page.Unload event handler and reloading it on Page.Load unless I've missed
something in your solution. I can provide code if you'd like to see what's
going on.

Regards,

Peter Keyes.
email:Click here to reveal e-mail address

"bruce barker" wrote:

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