Why does the followng code not work?
public partial class _Default : System.Web.UI.Page
{
protected void Date1(object sender, EventArgs e)
{
Label1.Text = "Selected date is: " + Calendar1.SelectedDate.ToShortDateString();
}
protected void Date2(object sender, EventArgs e)
{
Label2.Text = "Selected date is: " + Calendar2.SelectedDate.ToShortDateString();
}
protected void Button1_Click(object sender, EventArgs e)
{
TimeSpan ts = Date1 - Date2;
int numberOfDays = ts.Days;
Label3.Text = numberOfDays;
}
}
...
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