i am having problems with an asp.net c# site whereby i am setting a session state object to true and then redirecting to another page that needs to check the value of the session state object and it is null.
Sometimes it is set correctly and other times is is simply null.
When i debug on my local machine it works perfectly every time. Only when i upload to my web server does this temperamental behaviour happen.
As it is based around the security of the site it is obviously important that the session data be valid and accurate every time.
Is session state data unreliable?
AFAIK its set to inproc, cookieless, 30 min timeout, vanilla installation of IIS.
Does anyone have any suggestions? Perhaps i need to thread.sleep inbetween the storing of the session data and the reading?
NB: the time between the write and the read is about 70ms.. ample time for the data to be written to RAM…..
If the session state is lost, typically that’s because your process either recycles or fails. I would never “rely” on the session state between pages. Instead you might want to try to persist data between pages some other way. Perhaps passing the information via form variables or saving the data in the database.
ASP.NET Profiles are a preferred way to save this sort of information. You might want to read ASP.NET State Management Recommendations.