Here is the login form it has user id and password text boxes. When user clicks Login button, it calls ajaxLogin.aspx page in background process using JQuery and it returns login success or failure message and prints in one span element.
Example uses jquery.js file. You can download that file from here.
File: Login.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br /><html xmlns="http://www.w3.org/1999/xhtml"><br /><head><br /> <title>Html login page</title><br /> <script language="javascript" type="text/javascript" src="jquery.js"></script><br /> <script language="javascript" type="text/javascript"><br /> function login() {
var uid = $("#uid").value;
var pwd = $("#pwd").value;<br /> Here it checks that if user id is “test” and password is “test” then it does return successful login, here you can call your database and to find the login result.
File: ajaxLogin.aspx.cs
public partial class ajaxLogin : System.Web.UI.Page<br />{<br /> protected void Page_Load(object sender, EventArgs e)<br /> {<br /> if (Request.QueryString["uid"] != null && Request.QueryString["uid"] != null)<br /> {<br /> if (Request.QueryString["uid"].ToString() == "test" && Request.QueryString["pwd"].ToString() == "test")<br /> Response.Write("Login successful");<br /> else<br /> Response.Write("Login failure");<br /> }<br /> }<br />}
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