Handles a TreeCombo control (Widgets assembly) for use in selecting inflection features.
상속: SIL.FieldWorks.LexText.Controls.PopupTreeManager
		public PhonologicalFeatureEditor()
		{
			m_PhonologicalFeatureTreeManager = null;
			m_tree = new TreeCombo();
			m_tree.TreeLoad += new EventHandler(m_tree_TreeLoad);
			//	Handle AfterSelect event in m_tree_TreeLoad() through m_pOSPopupTreeManager
		}
		private void m_tree_TreeLoad(object sender, EventArgs e)
		{
			if (m_PhonologicalFeatureTreeManager == null)
			{
				if (!String.IsNullOrEmpty(m_featDefnAbbr))
				{
					// Find the feature definition this editor was created to choose options from
					var featDefns = from s in m_cache.LangProject.PhFeatureSystemOA.FeaturesOC
									where s.Abbreviation.BestAnalysisAlternative.Text == m_featDefnAbbr
									select s;
					if (featDefns.Any())
						m_closedFeature = featDefns.First() as IFsClosedFeature;
				}

				m_PhonologicalFeatureTreeManager = new PhonologicalFeaturePopupTreeManager(m_tree,
																						   m_cache, false, m_mediator,
																						   (Form)
																						   m_mediator.PropertyTable.GetValue(
																							"window"),
																						   m_displayWs, m_closedFeature);
				m_PhonologicalFeatureTreeManager.AfterSelect += new TreeViewEventHandler(m_PhonFeaturePopupTreeManager_AfterSelect);
			}
			m_PhonologicalFeatureTreeManager.LoadPopupTree(0);
		}
		/// <summary>
		/// Executes in two distinct scenarios.
		///
		/// 1. If disposing is true, the method has been called directly
		/// or indirectly by a user's code via the Dispose method.
		/// Both managed and unmanaged resources can be disposed.
		///
		/// 2. If disposing is false, the method has been called by the
		/// runtime from inside the finalizer and you should not reference (access)
		/// other managed objects, as they already have been garbage collected.
		/// Only unmanaged resources can be disposed.
		/// </summary>
		/// <param name="disposing"></param>
		/// <remarks>
		/// If any exceptions are thrown, that is fine.
		/// If the method is being done in a finalizer, it will be ignored.
		/// If it is thrown by client code calling Dispose,
		/// it needs to be handled by fixing the bug.
		///
		/// If subclasses override this method, they should call the base implementation.
		/// </remarks>
		protected virtual void Dispose(bool disposing)
		{
			System.Diagnostics.Debug.WriteLineIf(!disposing, "****** Missing Dispose() call for " + GetType().Name + ". ****** ");
			// Must not be run more than once.
			if (m_isDisposed)
				return;

			if (disposing)
			{
				// Dispose managed resources here.
				if (m_tree != null)
				{
					m_tree.Load -= new EventHandler(m_tree_TreeLoad);
					m_tree.Dispose();
				}
				if (m_PhonologicalFeatureTreeManager != null)
				{
					m_PhonologicalFeatureTreeManager.AfterSelect -= new TreeViewEventHandler(m_PhonFeaturePopupTreeManager_AfterSelect);
					m_PhonologicalFeatureTreeManager.Dispose();
				}
			}

			// Dispose unmanaged resources here, whether disposing is true or false.
			SelectedLabel = null;
			m_tree = null;
			m_PhonologicalFeatureTreeManager = null;
			m_mediator = null;
			m_cache = null;

			m_isDisposed = true;
		}