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Editorial Team
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Asked: 2026-05-13T20:48:05+00:00

My problem is that I can only seem to click the button once, if

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My problem is that I can only seem to click the button once, if I click multiple times it’s like it’s dead. Doesn’t do anything. So if I click it once it sets the text to “Works”. How come it doesn’t keep alternating between values when I click many times?

I have the following C# code (I know I am using too many namespaces, but please disregard that); 

using System;
using System.Collections.Generic;
using System.Data;
using System.Web.Security;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
{
    Label1.Text = "Click to test";
}

protected void Click(object sender, EventArgs e)
{

    if (Label1.Text == "Works")
    {
        Label1.Text = "Try again";
    }

    else
    {
        Label1.Text = "Works";
    }
}
}

And here is the ASPX code;

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" 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">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
        </ContentTemplate>
        <Triggers>
            <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
        </Triggers>
    </asp:UpdatePanel>
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Click" /> 

    </form>
</body>
</html>
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1 Answer

  1. Editorial Team

    In your Page_Load you need to check IsPostBack If it is a postback you shouldn’t set the control value.

    protected void Page_Load(object sender, EventArgs e)
{ 
     if (!IsPostBack)
        Label1.Text = "Click to test";
}

    Or in the case of an ajax update, it’s IsAutoPostback (I think!)

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