public void RemoveAfter()
{
TimestampSeries ts = new TimestampSeries();
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 1, 0, 0, 0), 1));
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 2, 0, 0, 0), 2));
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 3, 0, 0, 0), 3));
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 4, 0, 0, 0), 4));
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 5, 0, 0, 0), 5));
ts.Items.Add(new TimestampValue(new DateTime(2010, 1, 6, 0, 0, 0), 6));
ts.RemoveAfter(new DateTime(2010, 1, 3, 0, 0, 0));
Assert.AreEqual(2, ts.Items.Count);
ts.RemoveAfter(new DateTime(2010, 1, 8, 0, 0, 0));
Assert.AreEqual(2, ts.Items.Count);
ts.RemoveAfter(new DateTime(2009, 1, 1, 0, 0, 0));
Assert.AreEqual(0, ts.Items.Count);
ts.RemoveAfter(new DateTime(2010, 3, 1, 0, 0, 0));
Assert.AreEqual(0, ts.Items.Count);
}