Ajax Technique using Java Script in ASP.Net
Step1)Add the following code in your ASP.NET page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ajaxjavascript.aspx.cs" Inherits="ajaxjavascript" %>
<!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>ASP.Net AJAX page</title>
<script language=javascript>
function ajax()
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("myp").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","HTMLPage.htm",true);
xmlhttp.send();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<p id="myp"></p>
<input id="Button1" type="button" value="Click me" onclick="ajax()" />
</div>
</form>
</body>
</html>
Step 2)Add the following code into HTMLPage.htm file .
<!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>
<title>Untitled Page</title>
</head>
<body>
Hello AJAX
</body>
</html>
N.B:-Now when you will press the button the page content will change without reloading whole page.
Step1)Add the following code in your ASP.NET page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ajaxjavascript.aspx.cs" Inherits="ajaxjavascript" %>
<!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>ASP.Net AJAX page</title>
<script language=javascript>
function ajax()
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("myp").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","HTMLPage.htm",true);
xmlhttp.send();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<p id="myp"></p>
<input id="Button1" type="button" value="Click me" onclick="ajax()" />
</div>
</form>
</body>
</html>
Step 2)Add the following code into HTMLPage.htm file .
<!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>
<title>Untitled Page</title>
</head>
<body>
Hello AJAX
</body>
</html>
N.B:-Now when you will press the button the page content will change without reloading whole page.
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