23:36
Unknown
show loading image on page load
1) First Create the User Control for waiting Image like this
<%@ Control Language="C#" AutoEventWireup="true" Codebehind="ImageLoader.ascx.cs"
Inherits="ImageLoader" %>
<div id="loading" style="position: absolute; width: 100%; text-align: center; top: 300px; height:100%;">
<img src="images/Load.gif" border="0" />
</div>
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace Project
{
public partial class ImageLoader : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
}
}
}
2) Second Register the Control on that page where you display waiting Image and call JavaScript Function on Body onload="ImageLoader()" like this:
<%@ Page Language="C#" AutoEventWireup="true" Codebehind="ViewPermissionRequest.aspx.cs"
Inherits="ViewPermissionRequest" %>
<%@ Register TagPrefix="asp" TagName="loadingImg" Src="~/ImageLoader.ascx" %>
<!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">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>untile page</title>
<script type="text/javascript" language="javascript">
function ImageLoader()
{
var ld=(document.all);
var ns4=document.layers;
var ns6=document.getElementById&&!document.all;
var ie4=document.all;
if (ns4)
ld=document.loading;
else if (ns6)
ld=document.getElementById("loading").style;
else if (ie4)
ld=document.all.loading.style;
if(ns4)
{
ld.visibility="hidden";
alert(ns4);
}
else if (ns6||ie4)
ld.display="none";
}
</script>
</head>
<body onload="ImageLoader()">
<asp:loadingImg ID="imgloader" runat="server" />
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
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