public int CompareTo(MatrixRow <TItem> other) { if (other == null) { return(1); } return(this.Key.CompareTo(other.Key)); }
private IEnumerable <TItem> FilterItems(MatrixRow <TItem> matrixRow) { return(matrixRow.GetAggregatedItems().Where(item => AreEqual(_value, _columnHeaderSelector(item)))); }