XPTable.Models.Table.Sort C# (CSharp) Method

        public void Sort(bool stable)
        {
            // don't allow sorting if we're being used as a
            // preview table in a ColumnModel editor
            if (this.Preview)
            {
                return;
            }

            // if we don't have a sorted column already, check if
            // we can use the column of the cell that has focus
            if (!this.IsValidColumn(this.lastSortedColumn))
            {
                if (this.IsValidColumn(this.focusedCell.Column))
                {
                    this.lastSortedColumn = this.focusedCell.Column;
                }
            }

            // make sure the last sorted column exists
            if (this.IsValidColumn(this.lastSortedColumn))
            {
                // don't bother if the column won't let us sort
                if (!this.ColumnModel.Columns[this.lastSortedColumn].Sortable)
                {
                    return;
                }

                // work out which direction we should sort
                SortOrder newOrder = SortOrder.Ascending;

                Column column = this.ColumnModel.Columns[this.lastSortedColumn];

                if (column.SortOrder == SortOrder.Ascending)
                {
                    newOrder = SortOrder.Descending;
                }

                this.Sort(this.lastSortedColumn, column, newOrder, stable);
            }
        }