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

        private void ColumnCollectionChanged(object sender, CollectionChangeEventArgs e)
        {
            DataView dv = (DataView)_dvWeak.Target;
            if (dv != null)
            {
                dv.ColumnCollectionChangedInternal(sender, e);
            }
            else
            {
                CleanUp(true);
            }
        }