Passing Data Between Pages

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I created two forms. The source form contains a button with OnClientClick="javascript:window.open('Lookup.aspx');return false;"

Lookup contains a gridview. Once the user selects a row, I want to:

1. Call a method that updates objects on the source form based upon the id selected on "Lookup"

2. Close "Lookup".

Appreciate any assistance. Thanks.

Posted 29-Oct-13 12:23pm

FabeCode

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codeBlazer 29-Oct-13 23:03pm

Hi, When I need to pass data back I set a cookie and do a redirect to force a new page to reload. On page load the data fields get refreshed from data stored in the cookie.

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-10-29T19:40:00

Different pages are independent, which rooted in the following facts: 1) each page is a response to a separate HTTP request, or more than one requests, 2) HTTP protocol is stateless:
http://en.wikipedia.org/wiki/HTTP[^],
http://en.wikipedia.org/wiki/Stateless_protocol[^].

It means that for communication between pages or even different HTTP request/responses to the same page, you need something to store the state. It could be a database or even a file on server side (which is hardly can be recommended due to lack of transactional properties). A server-side approach associated with session states is explained here:
http://en.wikipedia.org/wiki/HTTP#HTTP_session_state[^],
see also http://en.wikipedia.org/wiki/HTTP#HTTP_session[^].

Please start here: http://msdn.microsoft.com/en-us/library/ms178581.ASPX[^].

—SA