AjaxControl Toolkit

I'm trying to use calender control extender in my project but its not working... ie on running the project when i click the textbox , the calender control is not visible....
This is the code below which i'm using:-
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication2.WebForm1" %>

<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <form id="form1" runat="server">
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:CalendarExtender ID="TextBox1_CalendarExtender" runat="server" Enabled="True" TargetControlID="TextBox1">
        <asp:ScriptManager ID="ScriptManager1" runat="server">

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Sukesh ShuklaAsked:
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John Gates, CISSPSecurity ProfessionalCommented:
Do you have a reference to the toolkit in the project??

John Gates, CISSPSecurity ProfessionalCommented:
Something that may help is getting the nuget package manager installed in your vs software:


Sukesh ShuklaAuthor Commented:
How to  and where to give reference to the toolkit in the project......
Sukesh ShuklaAuthor Commented:
I checked , refrence to the toolkit alredy exists, now what to do....Please help
John Gates, CISSPSecurity ProfessionalCommented:
Ok so can you turn debugging on in the browser you are using and see what errors it returns?


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