.net - Page Expiration After Postback?
Mar 11, 2010
I've been doing web development for a while and have yet to read a good answer to this question: iven a page that executes transactions through a postback, how do you prevent the user from duplicating the transaction when they do something as simple as hit the back button? I've explored trying expire the cache but I must admit I'm lacking in my understanding of ASP.NET caching. What is the approach I should use to make the old request stale and invalid?
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[code]...
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Oct 15, 2010
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Oct 15, 2010
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[URL]
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