public void addTimer(string name, DateTime finishTime)
{
TimerListEntry tle = new TimerListEntry();
tle.name = name;
tle.time = finishTime;
tle.lvi = createLvi(name, finishTime, tle);
int i = 0;
while (i < listViewTimer.Items.Count && ((TimerListEntry)listViewTimer.Items[i].Tag).time < finishTime) { i++; }
listViewTimer.Items.Insert(i, tle.lvi);
timerListEntries.Add(tle);
timer.Enabled = true;
}