Ajax Control ToolKit Error

[kushMuchaal]

I have install sucessfully AJAX Extesion & Ajax ControlToolKit for ASP.NET 2.0; AjaxControlToolKit is instaled by proper way**(D:\web_prg\ControlToolKit2.0\SampleWebSite\Bin\AjaxControlToolKit.dll)** that is provided with the SetUp(.exe) for AjaxControlKit. :) Element 'HoverMenuExtender' is not a known element. This can occur if there is a compilation error in the Web site. :doh: ScriptManager1:Unknown server tag 'asp:ScriptManager'. why these errors are Occurs.

[Brij]

you have to register the assembly in the header like <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %> Check the Assembly and Namespace according to your application

Cheers!! Brij Check my latest Article :URL Routing with ASP.NET 4.0

[kushMuchaal]

I have already register this Assembly in Header. <%@ Control Language="C#" AutoEventWireup="true" CodeFile="MultipleSelection.ascx.cs" Inherits="MultipleSelection" %> <%@ Register Assembly="CheckBoxListExCtrl" Namespace="CheckBoxListExCtrl" TagPrefix="cc1" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc2" %

[puviyarasan j]

Refresh the Ajax control Toolbox. and add the AjaxControlToolkit.dll again.