Dispose() on asp.net pages

I have ASP.NET web site and I get a session id from a web service where I am going to use throughout rest of pages. I am passing this session id between pages to peform some action. What I am trying to achieve is that I want to make sure I release this session id from the web service by calling it's logout method when the user closes a page. I am thinking to add Dispose() on each page and call the logout method. Does Dispose() get called when the user closes a page (browser)? Or, how can开发者_开发百科 I call the logout method when a page is closed?

Thanks.

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Dispose will get called at the end of each page call, not at the end of the user's session. It sounds to me like you want to use the Session_End event (in the global.asax) to end the web service session. If you call the logout in the page dispose you'll have to login again every time the user loads a new page.