SIL.FieldWorks.XWorks.LexEd.LexReferenceTreeRootLauncher.HandleChooser C# (CSharp) Method

		protected override void HandleChooser()
		{
			ILexRefType lrt = (ILexRefType)m_obj.Owner;
			int type = lrt.MappingType;
			BaseGoDlg dlg = null;
			try
			{
				switch ((LexRefTypeTags.MappingTypes)type)
				{
					case LexRefTypeTags.MappingTypes.kmtSenseTree:
						dlg = new LinkEntryOrSenseDlg();
						(dlg as LinkEntryOrSenseDlg).SelectSensesOnly = true;
						break;
					case LexRefTypeTags.MappingTypes.kmtEntryTree:
						dlg = new EntryGoDlg();
						break;
					case LexRefTypeTags.MappingTypes.kmtEntryOrSenseTree:
						dlg = new LinkEntryOrSenseDlg();
						break;
				}
				Debug.Assert(dlg != null);
				var wp = new WindowParams { m_title = String.Format(LexEdStrings.ksReplaceXEntry), m_btnText = LexEdStrings.ks_Replace };
				//This method is only called when we are Replacing the
				//tree root of a Whole/Part lexical relation
				dlg.SetDlgInfo(m_cache, wp, m_mediator);
				dlg.SetHelpTopic("khtpChooseLexicalRelationAdd");
				if (dlg.ShowDialog(FindForm()) == DialogResult.OK)
				{
					if (dlg.SelectedObject != null)
						AddItem(dlg.SelectedObject);
				}
			}
			finally
			{
				if (dlg != null)
					dlg.Dispose();
			}
		}