# Filter & Order

var columns = EnumerateColumns();

var adjustedFilterIndex = AdjustFilterIndex(columns, filterSettings);
TODO: OrderIndex
...
var filterEngine = new(columns, filterSettings);
columns = columns.Where(IsIncluded);

var rows = BuildRows(columns)
.Where(filterEngine.Filter)
.OrderBy(Order);

Filter(row)
{
var Cell[] row;
var column = row.FirstOrDefault(c => c.Id = FilterId);
}