/// ------------------------------------------------------------------------------------
        void m_cieSimilarOptionsDropDownContainer_Closed(object sender, ToolStripDropDownClosedEventArgs e)
        {
            // Make sure the drop-down completely goes away before proceeding.
            Application.DoEvents();

            if (CurrentTab.CieSimilarOptionsDropDown.OptionsChanged)
            {
                // Save the options as the new defaults for the project.
                App.Project.SaveCIEOptions(CurrentTab.CieSimilarOptionsDropDown.CIEOptions);
                CurrentTab.ResultView.Grid.CIEOptions = CurrentTab.CieSimilarOptionsDropDown.CIEOptions;
                CurrentTab.CIEViewSimilarRefresh();
            }

            CurrentTab.CieSimilarOptionsDropDownContainer.Closed -= m_cieSimilarOptionsDropDownContainer_Closed;
        }