Search facet

Search predicate

private static Expression<Func<SearchModel, bool>> GetCategoryFacetPredicate(List<string> categories)
{
    var predicate = PredicateBuilder.True<SearchModel>(); // Items which meet the predicate

    foreach (var category in categories)
    {
        predicate = predicate.Or(x => x.Category == category);
    }

    return predicate;
}