asp.net Button OnClick event not firing

Question

I have problem in asp.net button control.

I define a button in form, onclick event of button is not firing when I click on the button.

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Answer 1

If you are using updatepanel on onclick event, this may happen.

Use 'EnableEventValidation="false"' in your page markup like this :

<%@ Page Language="C#" MasterPageFile="~/ars_home.master" AutoEventWireup="true" CodeFile="Transaction_Window.aspx.cs" Inherits="Transaction_Window" EnableEventValidation="false" %>

Hope this helps

Answer 2

I had the same problem, my aspnet button's click was not firing. It turns out that some where on other part of the page has an input with html "required" attribute on.

This might be sound strange, but once I remove the required attribute, the button just works normally.

Answer 3

in my case: make sure not exist any form element in your page other than top main form, this cause events not fired