click on a buttion during pageload event

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.NET2.0

.NET

I want to perform onclick operation during page load event
please tell me

Posted 13-Sep-10 20:19pm

VinodKumar01

Updated 13-Sep-10 21:33pm

Dalek Dave

v4

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Dalek Dave 14-Sep-10 3:33am

Minor Spelling Edit.

3 solutions

Solution 1

Hi Vinod,

I have created two function to get Date and Time from Server and Client using button click from client side during page loading.

Note: Please don't call server button event during page loading other wise it will stuck because the scenario like:
1. Page is load
2. Button click event is calling from client side, it will again creating a post back
3. Again page load call....

Here is HTML code:

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ZTest2.aspx.cs" Inherits="ZTest2" %>
<!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 id="Head1" runat="server">
    <title></title>
    <script language="javascript" type="text/javascript">
        function getServerTime() {
            var btnServer = document.getElementById('<%=btnGetTime.ClientID %>');
            btnServer.click();
        }
        function clientClick() {
            var btnClient = document.getElementById('btnClient');
            btnClient.click();
        }
        function getClientTime() {
            var clientText = document.getElementById('<%=txtClientTime.ClientID %>');
            var dt = new Date();
            clientText.value = dt.getDate() + "-" + dt.getMonth() + "-" + dt.getFullYear() + " " + dt.getHours() + ":" + dt.getMinutes() + ":" + dt.getSeconds();
        }
        function pageLoadFunction() {
            clientClick();
            //getServerTime();
        }
    </script>
</head>
<body onload="pageLoadFunction();">
    <form id="form1" runat="server">
    <table cellpadding="0" cellspacing="0" width="100%">
        <tr>
            <td align="center">
                <table cellpadding="2" cellspacing="2">
                    <tr>
                        <td>
                            Getting server time using Javascript
                        </td>
                        <td>
                            <asp:TextBox runat="server" ID="txtServerTime"></asp:TextBox>
                        </td>
                        <td>
                            <asp:Button runat="server" ID="btnGetTime" Text="Get Server Time" OnClick="btnGetTime_Click" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            Getting client time using Javascript
                        </td>
                        <td>
                            <asp:TextBox runat="server" ID="txtClientTime"></asp:TextBox>
                        </td>
                        <td>
                            <input type="button" id="btnClient" value="Get Client Time" onclick="getClientTime();" />
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
    </form>
</body>
</html>

Here is server side code:

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class ZTest2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void btnGetTime_Click(object sender, EventArgs e)
    {
        txtServerTime.Text = DateTime.Now.ToString("dd-MMM-yy hh:mm:ss");
    }
}

Please do let me know, if you have any doubt.

Please provide Vote if this would be helpful to you.

Thanks,
Imdadhusen

Posted 13-Sep-10 20:54pm

Sunasara Imdadhusen

Comments

Dalek Dave 14-Sep-10 3:34am

Good Answer!

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Vadluri Sreenu · Accepted Answer · 2010-09-13T23:08:00

hi,

you mean button click event on page load.

its very simple
you can call button click event from page load.
see the below code.

XML

<form id="form1" runat="server">
    <div>
        <asp:Button ID="btn" Text="Submit" runat="server" onclick="btn_Click" />
    </div>
 </form>

C#

protected void Page_Load(object sender, EventArgs e)
    {
        btn_Click(sender, e);
    }
    protected void btn_Click(object sender, EventArgs e)
    {
        Response.Write("button click event executed");
    }

mohangbits · Accepted Answer · 2010-09-13T22:43:00

Solution 2

Simple..

Create a separate method say MyMethod(). call this method in Page_Load and also under the Button Click Event !!

Problem solved :)

Posted 13-Sep-10 22:43pm

mohangbits