public static void Sort()

in ContosoApp/Views/DataGridHelper.cs [44:61]

• 16 lines of code
• 5 McCabe index (conditional complexity)

        public static void Sort(this DataGrid dataGrid, DataGridColumn columnToSort, Action<string, bool> sort)
        {
            var lastSortedColumn = dataGrid.Columns.Where(column =>
                column.SortDirection.HasValue).FirstOrDefault();
            bool isSortColumnDifferentThanLast = columnToSort != lastSortedColumn;
            bool isAscending = isSortColumnDifferentThanLast ||
                columnToSort.SortDirection == DataGridSortDirection.Descending;

            columnToSort.SortDirection = isAscending ?
                DataGridSortDirection.Ascending : DataGridSortDirection.Descending;
            if (isSortColumnDifferentThanLast && lastSortedColumn != null)
            {
                lastSortedColumn.SortDirection = null;
            }

            var propertyName = columnToSort.Tag as string ?? columnToSort.Header.ToString();
            sort(propertyName, isAscending);
        }