IBindingList不支持排序问题

Question

我尝试在GridView中进行排序。我接受代码here。并将其放入ColumnHeaderMouseClick事件：

        private void УчасткиDataGridViewColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
    {
        // Check which column is selected, otherwise set NewColumn to null.
        var newColumn =
            УчасткиDataGridView.Columns.GetColumnCount(
            DataGridViewElementStates.Selected) == 1 ?
            УчасткиDataGridView.SelectedColumns[0] : null;

        MessageBox.Show(УчасткиDataGridView.SelectedColumns.Count.ToString());
        var oldColumn = УчасткиDataGridView.SortedColumn;
        ListSortDirection direction;

        if (oldColumn != null)
        {
            // Sort the same column again, reversing the SortOrder. 
            if (oldColumn == newColumn &&
                УчасткиDataGridView.SortOrder == SortOrder.Ascending)
            {
                direction = ListSortDirection.Descending;
            }
            else
            {
                // Sort a new column and remove the old SortGlyph.
                direction = ListSortDirection.Ascending;
                oldColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
            }
        }
        else
        {
            direction = ListSortDirection.Ascending;
        }

        if (newColumn == null)
        {
            MessageBox.Show("Select a single column and try again.",
                "Error: Invalid Selection", MessageBoxButtons.OK,
                MessageBoxIcon.Error);
        }
        else
        {
            УчасткиDataGridView.Sort(newColumn, direction);
            newColumn.HeaderCell.SortGlyphDirection =
                direction == ListSortDirection.Ascending ?
                SortOrder.Ascending : SortOrder.Descending;
        }
    }

但是在УчасткиDataGridView.Sort(newColumn, direction);行中，我得到了例外：

IBindingList does not support sorting

有什么不对？