public void Register(Task t)
{
if (t.Interval.TotalMilliseconds == 0)
{
(_timer as DispatcherTimerProxy).BeginInvoke(t.Execution);
}
else
{
_queue.Add(t);
changeTimerInterval();
}
}
public void UnRegister(Task t)
{
_queue.RemoveAll(t1 => t.Execution == t1.Execution);
changeTimerInterval();
}