public void RemoveTest()
{
ListViewGroup obj = new ListViewGroup("Item1");
ListViewGroup obj2 = new ListViewGroup("Item2");
grpCol.Add(obj);
grpCol.Add(obj2);
grpCol.Remove(obj);
Assert.AreEqual(1, grpCol.Count, "#F1");
Assert.AreEqual(null, obj.ListView, "#F2");
Assert.AreEqual(lv, obj2.ListView, "#F3");
}