How to set calendar in textbox in asp.net C#

Source Code:-

<div>

        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

        <asp:ImageButton ID="ImageButton1" runat="server" Height="17px"

            ImageUrl="~/image/calender.jpg" onclick="ImageButton1_Click"Width="21px" />

<asp:Calendar ID="Calendar1" runat="server"

            onselectionchanged="Calendar1_SelectionChanged" Visible="False">

        </asp:Calendar>

    </div>

   

C# Code:-

protected void ImageButton1_Click(object sender, ImageClickEventArgs e)

    {

        Calendar1.Visible = true;

    }

    protected void Calendar1_SelectionChanged(object sender, EventArgs e)

    {

        TextBox1.Text = Calendar1.SelectedDate.ToShortDateString();

        Calendar1.Visible = false;

    }