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Editorial Team
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Asked: 2026-05-26T09:08:35+00:00

I created an AJAX.NET application and I am running my application with the help

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I created an AJAX.NET application and I am running my application with the help of <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> but now my following sample code is posting back on every button click. I need the action to be done without reloading the page.

Code follows.

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test.aspx.cs" Async="true" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <Triggers>
        <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
        </Triggers>
        <ContentTemplate>
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
        </ContentTemplate>
        </asp:UpdatePanel>
    </div>
    </form>
</body>
</html>


using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text = "Hello";
    }
}
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1 Answer

  1. Editorial Team

    I found the solution in below way

    1. Install Ajax tool kit.
    2. Add public key and version number to web.config file.
    3. Copy and paste Ajax dll files to bin folder of required data folder.
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