Button Onclick and OnClientClick Event should not fire together

[manav kapila]

In the onclientclick event of a button, I have a javascript code that returns either true or false. My question is that Onclick event of that button should fire only if onclientclick returns true otherwise not.

[firexfighterx]

If you have Javascript validation is client side. The onclick event is server side. The client always runs first. Hope this helps.

[Frinavale]

Please check out this article about How to use JavaScript in ASP.NET. If you still have questions after you read it, post back here :)