public void ClearSelection()
{
bool success = controller.LoadInitialFile(TestUtil.GetTestFile("selectionmgr\\sampleevent1.coursescribe"), true);
Assert.IsTrue(success);
selectionMgr.ActiveTab = 0;
selectionMgr.SelectDescriptionLine(4);
CheckSelectedLines(4, 4);
selectionMgr.ClearSelection();
CheckSelectedLines(-1, -1);
selectionMgr.ActiveTab = 3;
selectionMgr.SelectDescriptionLine(5);
CheckSelectedLines(5, 5);
selectionMgr.ClearSelection();
CheckSelectedLines(-1, -1);
}