asp.net - How to change CalendarExtender date format

CalendarExtender date format
CalendarExtenderDateFormat.aspx

<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<!DOCTYPE html>

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    { 
        if(!this.IsPostBack)
        {
            CalendarExtendar1.TargetControlID = "TextBox1";
            CalendarExtendar1.CssClass = "CalendarStyle";
            Label1.ForeColor = Color.SeaGreen;
            Label1.Font.Bold = true;
            Label1.Font.Underline = true;
            TextBox1.ForeColor = Color.Crimson;
            Label1.Font.Name = "Courier New";
            TextBox1.Font.Bold = true;
            TextBox1.Width = 150;
            TextBox1.Font.Name = "Comic Sans MS";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Ajax CalendarExtender date format - how to set change</title>
    <style type="text/css">
        .CalendarStyle 
        {
            background-color:Crimson;
            color:White;
            border:solid 2px DarkRed;
            }
        .ajax__calendar_header
        {
            background-color:OrangeRed;
            color:Snow;
            }                 
        .ajax__calendar_footer
        {
            background-color:Salmon;
            color:Snow;
            }            
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:RosyBrown; font-style:italic;">Ajax CalendarExtender Example: How To Set Date Format</h2>
        <hr width="550" align="left" color="BurlyWood" />
        <asp:ScriptManager 
            ID="ScriptManager1"
            runat="server"
            >
        </asp:ScriptManager>
        <cc1:CalendarExtender 
            ID="CalendarExtendar1"
            runat="server"
            Format="MMMM d, yyyy"
            >
        </cc1:CalendarExtender>
        <br />
        <asp:Label 
            ID="Label1"
            runat="server"
            Text="Calendar with date format"
            >
        </asp:Label>
        <asp:TextBox 
            ID="TextBox1"
            runat="server"
            >
        </asp:TextBox>
    </div>
    </form>
</body>
</html>
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