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

        private void BaseAdd(DataColumn column)
        {
            if (column == null)
            {
                throw ExceptionBuilder.ArgumentNull(nameof(column));
            }
            if (column._table == _table)
            {
                throw ExceptionBuilder.CannotAddColumn1(column.ColumnName);
            }
            if (column._table != null)
            {
                throw ExceptionBuilder.CannotAddColumn2(column.ColumnName);
            }

            if (column.ColumnName.Length == 0)
            {
                column.ColumnName = AssignName();
            }

            RegisterColumnName(column.ColumnName, column);
            try
            {
                column.SetTable(_table);
                if (!_table.fInitInProgress && column.Computed)
                {
                    if (column.DataExpression.DependsOn(column))
                    {
                        throw ExceptionBuilder.ExpressionCircular();
                    }
                }

                if (0 < _table.RecordCapacity)
                {
                    // adding a column to table with existing rows
                    column.SetCapacity(_table.RecordCapacity);
                }

                // fill column with default value.
                for (int record = 0; record < _table.RecordCapacity; record++)
                {
                    column.InitializeRecord(record);
                }

                if (_table.DataSet != null)
                {
                    column.OnSetDataSet();
                }
            }
            catch (Exception e) when (ADP.IsCatchableOrSecurityExceptionType(e))
            {
                UnregisterName(column.ColumnName);
                throw;
            }
        }