Hi Experts, I am using ajax control toolkit's calander exter in asp.net 4.5, however I get following two errors and calander does not show up.
Error 1 : Error: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll
Error 2 : 'Sys.Extended.UI' is null or not an object
Code
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="WebApplication2.WebForm4" %><%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><title></title></head><body><form id="form1" runat="server"><div><asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></asp:ToolkitScriptManager><asp:CalendarExtender ID="CalendarExtender1" TargetControlID="txtDate" runat="server"></asp:CalendarExtender><asp:TextBox ID="txtDate" runat="server"></asp:TextBox></div></form></body></html>