How to use Button ClientClick event in Button example: how to use ClientClick event
<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<script runat="server">
    protected void Button2_Click(object sender, System.EventArgs e) {
        Label1.Text = "Button2 Clicked!";

<script  type="text/javascript">
    function AlertOnClientClick()
        alert('OnClientClick event triggered!');

<html xmlns="">
<head runat="server">
    <title> Button example: how to use OnClientClick event</title>
    <form id="form1" runat="server">
        <h2 style="color:Purple">Using OnClientClick event</h2>
        <asp:Label ID="Label1" runat="server" Font-Size="Large" ForeColor="DarkGreen"></asp:Label>
        <br /><br />
        <asp:Button ID="Button1" runat="server" Text="Click Me" OnClientClick="AlertOnClientClick()" Font-Bold="true" ForeColor="Teal" />
        <asp:Button ID="Button2" runat="server" Text="Button2" OnClick="Button2_Click" Font-Bold="true" ForeColor="Teal" />
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