// Fig. 15.11: DateTimePickerForm.cs
// Using a DateTimePicker to select a drop off time.
using System;
using System.Windows.Forms;

namespace DateTimePickerTest
{
   // Form lets user select a drop off date using a DateTimePicker 
   // and displays an estimated delivery date
   public partial class DateTimePickerForm : Form
   {
      // constructor
      public DateTimePickerForm()
      {
         InitializeComponent();
      } // end constructor

      private void dropOffDateTimePicker_ValueChanged(
         object sender, EventArgs e )
      {
         DateTime dropOffDate = dropOffDateTimePicker.Value;

         // add extra time when items are dropped off around Sunday
         if ( dropOffDate.DayOfWeek == DayOfWeek.Friday ||
            dropOffDate.DayOfWeek == DayOfWeek.Saturday ||
            dropOffDate.DayOfWeek == DayOfWeek.Sunday )

            //estimate three days for delivery
            outputLabel.Text = 
               dropOffDate.AddDays( 3 ).ToLongDateString();
         else
            // otherwise estimate only two days for delivery
            outputLabel.Text = 
               dropOffDate.AddDays( 2 ).ToLongDateString();
      } // end method dropOffDateTimePicker_ValueChanged

      private void DateTimePickerForm_Load( object sender, EventArgs e )
      {
         // user cannot select days before today
         dropOffDateTimePicker.MinDate = DateTime.Today;

         // user can only select days up to one year in the future
         dropOffDateTimePicker.MaxDate = DateTime.Today.AddYears( 1 );
      } // end method DateTimePickerForm_Load
   } // end class DateTimePickerForm
} // end namepsace DateTimePickerTest

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