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I likt to use close event while closing my asp.net page, because there is a POSTBACK event on a Dropdownlist control in that page, when the page postback it will be closed.
onUnload event is just unload event ,not the closing event, I googled ,cant find result, can anyone who has this experience help me? or give me some suggestions.
Posted 22-Oct-11 18:55pm

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Solution 1

You have access to this event on client side with help of javascript :
 
http://www.w3schools.com/jsref/event_onunload.asp[^]
 
do some AJAX actions in your javascript evenet handler to notify the server.
 
The other way that may not help you is Session_End in Global.asax file. but if you need an immediate reaction the javascript event handler is very suitable.
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