how to add AJAX extenders in my Project

go to website of ajax extenders download latest ajax extenders.
add dll file into your project u will be able to use ajax extenders

first u have to add ajaxcontroltoolkite.dll in your project-->bin Folder.,
after then add new tab in your project toolbox-->give some name-->right click on it and choose Items.. --> after open window choose toolbox items-->click Browse Button and select your project "ajaxcontroltoolkite.dll" (Which you coped in your project's bin folder..)and click OK button...

now your new added tab can show all ajax controlss..

i think it help.
thank you.

Hi,

First you must add reference with AjaxControlToolkit.dll

then in you Client Page you should register it with TagPreFix.
Example:

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
    CodeFile="ReimbursementIP.aspx.cs" Inherits="ReimbursementIP" Title="Reimbursement"
    EnableTheming="true"%>
    <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

then in your code behind:
Example code:

<asp:TextBox ID="txtAdmissionDate" runat="server"></asp:TextBox>
<cc1:CalendarExtender PopupButtonID="imgDatepicker" ID="CalendarExtender1" TargetControlID="txtAdmissionDate"     runat="server">
</cc1:CalendarExtender>
<asp:ImageButton runat="Server" ID="imgDatepicker" ImageUrl="~/Images/Calendar.png"/> 

Hope this could help...

Regards,