System.Data.DataColumnCollection.OnCollectionChanged C# (CSharp) Метод

        private void OnCollectionChanged(CollectionChangeEventArgs ccevent)
        {
            _table.UpdatePropertyDescriptorCollectionCache();

            if ((null != ccevent) && !_table.SchemaLoading && !_table.fInitInProgress)
            {
                DataColumn column = (DataColumn)ccevent.Element;
            }

            CollectionChanged?.Invoke(this, ccevent);
        }