public override void OnGUI(LocalizedTablePropertyDrawerPropertyData data, Rect position, SerializedProperty property, GUIContent label)
        {
            var dropDownPosition = EditorGUI.PrefixLabel(position, label);

            if (EditorGUI.DropdownButton(dropDownPosition, data.FieldLabel, FocusType.Passive))
            {
                var treeSelection = new TableTreeView(typeof(TCollection) == typeof(StringTableCollection) ? typeof(StringTable) : typeof(AssetTable), collection =>
                {
                    data.SelectedTableCollection = collection as TCollection;

                    // Will be called outside of OnGUI so we need to call ApplyModifiedProperties.
                    data.serializedObject.ApplyModifiedProperties();
                });

                PopupWindow.Show(dropDownPosition, new TreeViewPopupWindow(treeSelection)
                {
                    Width = dropDownPosition.width
                });
            }
        }
        void DoTableGUI(Rect rect, SerializedProperty property)
        {
            var tableRef   = new SerializedTableReference(property.FindPropertyRelative("tableReference"));
            var valueLabel = new GUIContent(GetTableLabel(tableRef.Reference));

            var dropDownPosition = EditorGUI.PrefixLabel(rect, Styles.tableCollection);

            if (EditorGUI.DropdownButton(dropDownPosition, valueLabel, FocusType.Passive))
            {
                var treeSelection = new TableTreeView(m_TableType, sel =>
                {
                    tableRef.Reference = sel != null ? sel.TableCollectionNameReference : default(TableReference);
                    var entryRef       = new SerializedTableEntryReference(property.FindPropertyRelative("tableEntryReference"));
                    entryRef.Reference = SharedTableData.EmptyId;
                    property.serializedObject.ApplyModifiedProperties();
                });
                PopupWindow.Show(dropDownPosition, new TreeViewPopupWindow(treeSelection)
                {
                    Width = dropDownPosition.width
                });
            }
        }