Autocomplete textbox from database: big trouble

hi,

here i am providing the steps to resolve this error.

step-1

1st add the reference of ajaxcontroltoolkit.dll to your webapplication or website.

step-2

add this directive tag after page directive

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>

step-3

add this tag after your form tag
 
               

now your page is ready to use ajaxcontroltoolkit controls


i modified your code. 1st follow these steps  then check this code


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>





   


   

 
               
   

       
   

   

for autocomplte you can check this example
http://www.aspsnippets.com/Articles/ASP.Net-AJAX-Control-Toolkit-AutoCompleteExtender-without-using-Web-Services.aspx

add below code in ur web.config file:

You're registered the ajaxcontrol toolkit in your page.



Add the above statement in your page after <%@Page ...%> line.