private void ButtonOkClick(object sender, EventArgs e)
{
// take focus away from time pickers
buttonOK.Focus();
// get start and end times from input
var start = TimeOfDay.FromDateTime(dateTimePickerStart.Value);
var end = TimeOfDay.FromDateTime(dateTimePickerEnd.Value);
// if it starts before it ends
if (start >= end)
{
MessageBox.Show("Start time must be before end time.", "Unavailable Timeslot", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
// if it's not within the scope of the timetable
if (end <= new TimeOfDay(_earliest, 0))
{
MessageBox.Show("End time must be after " + _earliest + "am.", "Unavailable Timeslot", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
dateTimePickerEnd.Focus();
return;
}
if (start >= new TimeOfDay(_latest, 0))
{
MessageBox.Show("Start time must be before " + _latest + "pm.", "Unavailable Timeslot", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
dateTimePickerStart.Focus();
return;
}
// clip the timeslot to be within the bounds of the timetable
if (start < new TimeOfDay(_earliest, 0))
{
start = new TimeOfDay(_earliest, 0);
}
if (end > new TimeOfDay(_latest, 0))
{
end = new TimeOfDay(_latest, 0);
}
// build new unavailability from input
var unavail = new Unavailability(textBoxName.Text, comboBoxDay.SelectedIndex,
-1, start.Hour, start.Minute, end.Hour, end.Minute);
if (_unavail != null && _unavail.EquivalentTo(unavail) && _unavail.Name == unavail.Name)
{
DialogResult = DialogResult.Cancel;
Close();
return;
}
// if editing, remove the old timeslot
if (_unavail != null)
{
_timetable.UnavailableList.Remove(_unavail);
}
// if it doesn't fit in the current timetable
if (!_timetable.FreeDuring(unavail, true))
{
MessageBox.Show("Selected time slot is currently occupied.", "Unavailable Timeslot",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
// if editing, add the old timeslot back in
if (_unavail != null)
{
_timetable.UnavailableList.Add(_unavail);
}
return;
}
// insert the edited timeslot
_timetable.UnavailableList.Add(unavail);
// recompute solutions
_timetable.RecomputeSolutions = true;
// return
DialogResult = DialogResult.OK;
Close();
}