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greatfree
February 17th, 2006, 09:47 PM
Dear all,

I am trying to implement a system that needs to access Web pages. To increase the performance, I hope to fetch Web pages only if they are updated. It seems that it is not accurate to do that based on date information of a page? If so, could you please give me an idea? What does IE deal with this issue?

Best regards,
Greatfree
Eric_Van_de_Kerckhove
February 18th, 2006, 05:10 AM
why don't you make a timer to check if the html code of the page has changed?
greatfree
February 18th, 2006, 05:22 AM
why don't you make a timer to check if the html code of the page has changed?

Make a timer? The timer must reside at the client. If so, it only works after a page is transmitted to the client. Even if the page on the server is changed, how can I realize that?