HTMLButton postback anyway, even onclick return false [closed]

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I have on page:

< button runat="server" id="btnRegister" class="button1" onserverclick="btnRegister_Click">Register</button >

I use jQuery for add a client click event:

$("#btnRegister").click(function () { return CheckUserData(); });

function CheckUserData(){
    return false;
}

When I press the button, page do postback! whats wrong?

Thanks

Answer 1

1. javascript erron in function CheckUserData(). after correct error, page will never postback! The right use will: $("#btnRegister").click(function () { if(!CheckUserData()) { return false; } }); Becouse on serverclick will add postback code after your click function.