How to select a date from a calendar to a textbox?

[piderobii]

I can't get the selected date in the calendar to my textbox. Here is what I wrote in my Calendar.aspx.cs:

namespace Labb1
{
public partial class Calendar : System.Web.UI.Page
{
private void Page_Load(Object sender, EventArgs e)
{
}
void Calendar1_SelectionChanged(object sender, EventArgs e)
{
TextBox1.Text = Calendar1.SelectedDate.ToString("dd MMMM");
}
}
}

What do I do wrong? ... Please help!

[aspdotnetuser]

Are you looking for something like date control?
Please take help of ajax datecontrol extender or jQuery date control extender...