private void delete_all_button_Click(object sender, EventArgs e)
{
DialogResult userChoice = MessageBox.Show(@"Delete all entries?", @"Warning", MessageBoxButtons.YesNo,
MessageBoxIcon.Warning);
if (userChoice == DialogResult.Yes)
{
_deletedAll = true;
_deletedBuses.AddRange(_busService.GetAllBusSchedules());
_busService.DeleteAllBuses();
bus_schedules_listview.Items.Clear();
}
}
