Hello

I am using the viewstate for storing my variables between two page
postbacks (the same page is called back), in order to not save any
cookie or session variable on the server;

My problem is that it seems there is a timout between the render of
the page and the moment you postback the page  by clicking on a
control : if i click on a button just after the page is displayed, no
pb, but if i wait about 30 seconds and then click on the button, then
the viewstate seem to have been cleared;

After many researchs on the net, i didn't found any response to my
question, so i really don't understand why this happens. could you
help me please ? should i add anything to my HTML code or is the
problem on the server side ?

For information, i'm working on IIS 5.0, C# 2, Visual Studio 2008
express

bye
Nico