I want to execute a javascript function befor execution of page_load event in asp.net

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I want to execute a java script function written on client side before execution of page_load() event
Plz some one help me....thanks

Posted 23-Apr-14 0:57am

chaitanya.gorupina

Updated 23-Apr-14 0:59am

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Peter Leow · Answer 1 · 2014-04-23T01:07:00

Solution 1

Refer:
1. how-to-execute-jquery-script-before-page-load[^]
2. ASP.NET Page Life Cycle[^]

Posted 23-Apr-14 1:07am

Peter Leow

ZurdoDev · Answer 2 · 2014-04-23T01:29:00

Solution 1 has a link to your answer but I'll explain it here.

You can't do this, sort of.

When you visit a web page the first thing to happen is all of the C# runs and IIS/.Net generate html and send the html and any supporting files (css, images, javascript) to your browser and then your browsers parses it. At that point you can run JavaScript.

The reason I say sort of is because you can have JavaScript run before the page postsback and during a postback Page_Load runs again. Sometimes on a button click we run JavaScript to validate the form is filled in and then we let it postback at which point on the server side the Page_Load will run. This is the only way to do that but the way you are asking really does not make any sense.

Client and Server are totally disconnected.