Browser close event in .net

is there any way to fi开发者_JAVA技巧nd the browser close event in asp.net

you can use Javascript for that.

document.unLoad()

For client side event: use unload event.

For server side event:

1. Use unload event to make an Ajax call to the server.
2. Use the session_end event. (I not sure how much this feature is trusted).