BACK button question

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This is my first ASP project…it displays a search page that users can select their search criteria and select the number of records to display on a page. The problem is on the second page. If I use the back button after looking at one or more pages, the data on the page changes, but the page number in the list box doesn’t change. If I hit the REFRESH button the page number changes. Is there a way to make the page number change without hitting the REFRESH button?
Thanks in advance!!

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Using the Back button with web applications is a typical problem. As you know, the Back button reads a cached copy of the page rather than re-requesting the page from the Server. The server has no control over the content under those circumstances.

So, I think my answer to your question is no. You can’t invoke a server-side process just from having a user click the “Back” button. (However, there is probably a way to have a JavaScript function re-request the page after the user clicks “Back”.)

Hope this helps!

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Thanks Mark, it does help. But now I have another question! How to capture the click event of the back button, I haven’t worked with javascript. ?

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Try adding these to your script before any output or other Response:

  Response.Expires = -1                   '// make sure page is always refreshed
  Response.AddHeader "Pragma", "No-cache" '// no really, don't cache this page

This is not sure-fire, but it helps. You’d think one or the other would do, but no… The problem is whether or not the browser is following instructions. IE seems to use the cache to often, while Netscape (IMHO) doesn’t use it enough.

HTH

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