System.Data.DataViewListener.RegisterMetaDataEvents C# (CSharp) Метод

        internal void RegisterMetaDataEvents(DataTable table)
        {
            Debug.Assert(null == _table, "DataViewListener already registered table");
            _table = table;
            if (table != null)
            {
                // actively remove listeners without a target
                RegisterListener(table);

                // start listening to events
                var handlerCollection = new CollectionChangeEventHandler(ColumnCollectionChanged);
                table.Columns.ColumnPropertyChanged += handlerCollection;
                table.Columns.CollectionChanged += handlerCollection;

                var handlerChildRelation = new CollectionChangeEventHandler(ChildRelationCollectionChanged);
                ((DataRelationCollection.DataTableRelationCollection)(table.ChildRelations)).RelationPropertyChanged += handlerChildRelation;
                table.ChildRelations.CollectionChanged += handlerChildRelation;

                var handlerParentRelation = new CollectionChangeEventHandler(ParentRelationCollectionChanged);
                ((DataRelationCollection.DataTableRelationCollection)(table.ParentRelations)).RelationPropertyChanged += handlerParentRelation;
                table.ParentRelations.CollectionChanged += handlerParentRelation;
            }
        }