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.NET Forum / ASP.NET / General / December 2007Session in .NET 2.0
Hi, I am new to .net. I have created a small web application using .net 2.0 in vs2005, where the user logs in and adds content on their pages. The content editing is done by integrating a wysiwyg editor (FCKEditor). The problem is that sometime if the user spends too much time editing the content and presses the update button, the session gets timed out and the users looses all what he has been doing. In the old days of classic ASP, i used to increase the Session.Timeout value to a high number. But how to do it in .NET? I would like to know some best practice example of keeping the user session alive in .NET. Any help is appriciated. Tnx. Hi, You can achieve changing the timeout value in "web.config" file. You have to find the node beginning with "sessionState" under "<system.web>" node and change the value of "timeout" attribute. The value you set here is based on "minute"s. So if its value is "20" then your session timeout value is 20 minutes.  SignatureAll the best, Coskun SUNALI MVP ASP/ASP.NET http://sunali.com > Hi, > [quoted text clipped - 12 lines] > > Tnx. > In the old days of classic ASP, I used to increase the Session.Timeout > value to a high number. But how to do it in .NET? Same way: http://msdn2.microsoft.com/en-us/library/system.web.sessionstate.httpsessionstat e.timeout(VS.80).aspx > I would like to know some best practice example of keeping the user > session alive in .NET. Sessions time out for a reason, namely to reduce the amount of memory overhead on the webserver. As the MSDN article below states, you should really think very carefully before increasing the timeout value... http://msdn2.microsoft.com/en-us/library/ms525473.aspx SignatureMark Rae ASP.NET MVP http://www.markrae.net >> I would like to know some best practice example of keeping the user >> session alive in .NET. [quoted text clipped - 3 lines] > really think very carefully before increasing the timeout value... > http://msdn2.microsoft.com/en-us/library/ms525473.aspx I'll second that. IMO, the "best practice" for using sessions is to pass data from one page to another on a redirect. If you need to persist data longer than a couple of seconds, I'd put it in a DB. Read my article on codeproject for easy solution http://www.codeproject.com/KB/aspnet/SessionForever.aspx George. > Hi, > [quoted text clipped - 12 lines] > > Tnx. Nice work-around, but you still can't control when the asp.net worker process re-cycles. Especially in a shared host environment. > Read my article on codeproject for easy solution > http://www.codeproject.com/KB/aspnet/SessionForever.aspx [quoted text clipped - 17 lines] >> >> Tnx. Ideally it should never recycle. If you have a browser hitting the SessionRenew.aspx every 10 minutes then it will not recycle due to inactivity. If it recycles just because someone spiked CPU and hoster had to hit reset button in shared hosting environment you doomed no matter what you do :) But then if availability that important to you time to think about dedicated server. George. > Nice work-around, but you still can't control when the asp.net worker > process re-cycles. Especially in a shared host environment. [quoted text clipped - 20 lines] >>> >>> Tnx. > Ideally it should never recycle. It does. > If you have a browser hitting the SessionRenew.aspx every 10 minutes then > it will not recycle due to inactivity. Probably due to memory - from other hacks stuffing too much crap in their session variables. > If it recycles just because someone spiked CPU and hoster had to hit reset > button in shared hosting environment you doomed no matter what you do :) Indeed. > But then if availability that important to you time to think about > dedicated server. Or not use sessions. :) George Ter-Saakov, quick question: why can't you use a gif image instead of the gif-class something like: ...... ...... document.images("renewSession").src = "/images/spacer.gif?par=" + Math.random(); ...... ...... Does this work? or Not ? LVP > Read my article on codeproject for easy solution > http://www.codeproject.com/KB/aspnet/SessionForever.aspx [quoted text clipped - 17 lines] >> >> Tnx. The whole point of it was to silently renew .NET Session. For that you must hit something that goes through .NET engine (usually .aspx page) every 20 minutes or your session will expire and removed due to inactivity and to preserve server resources. So how hitting spacer.gif is going to help? The request does not go through .NET and will not renew session. George. > George Ter-Saakov, > [quoted text clipped - 34 lines] >>> >>> Tnx. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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