way to set background image static and it doesnt load after each postback?

[Bogosian]

Hi to all.I have to solve the following problem.I have to make a
website which will be a web cache machine with the look of a real
cache machine - screen and buttons below it.So i plan the background
to be an image and when users cklick the buttons only some of the data
on the screen will change.I want to make this background image
static(includin g the buttons if possible because otherwise it'll be
very ugly if the buttons leave blank spaces after postback).I mean
that it shouldn be loaded after each postback(no matter whether from
the cache or downloaded from the server).What i really need is just a
small portion of information to be loaded after each postback
event.What would you advice me to do - IFrames + client scripts or
something else?
Thanks in advance.

[Chris Jackson]

It depends on how much your content is going to change. If you are going to
be loading entire pages, then the easiest way is to use IFrames. If you
aren't changing much, then you might consider using client-side scripts to
fetch the content from a web service and then inject into the InnerHtml of
whatever section you want to populate. Caution here, however, as this is a
very brittle approach: if scripts are disabled your application will break,
and if you are doing XML manipulation on the client you will find
differences in support among the various browsers.

--
Chris Jackson
Software Engineer
Microsoft MVP - Windows Client
Windows XP Associate Expert
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"Bogosian" <bo****@mailcit y.com> wrote in message
news:ba******** *************** ***@posting.goo gle.com...

Hi to all.I have to solve the following problem.I have to make a
website which will be a web cache machine with the look of a real
cache machine - screen and buttons below it.So i plan the background
to be an image and when users cklick the buttons only some of the data
on the screen will change.I want to make this background image
static(includin g the buttons if possible because otherwise it'll be
very ugly if the buttons leave blank spaces after postback).I mean
that it shouldn be loaded after each postback(no matter whether from
the cache or downloaded from the server).What i really need is just a
small portion of information to be loaded after each postback
event.What would you advice me to do - IFrames + client scripts or
something else?
Thanks in advance.

[Bogosian]

Chris,thank you very much for bothering to advice me.I have two final
questions.
It's about the background image of the page - as i said the page is a
web cache machine and my idea is the background to look like a cache
machine.So i've read somewhere that by deafault the content of a web
directory doesnt expire unless you set it to in IIS.So if I place the
background image in a separate directory on the server wont this solve
the whole problem - I mean wouldnt it look static on the client's
browser when he or she presses a postback button without getting a
blank screen for parts of the second?The other thing is that for the
purposes of the application i need the user to be in a session because
the interactions with the machine cant be standalone but one after
another and using session information to calculate the consecutive
responses.So I cant use webservices to make the requests because i
wouldnt be able to use what sessions give to me.I am asking whether i
can fetch information using some different approach - for example
after pressing the button which should do the postback stuff to run
some client-side script which to address an aspx page which will
return information(lik e the appropriate query string to attach to the
src property of an img element which will get the right jpeg).These
are my thoughts can you add something.Thank s once again.