我所做的不包括与结果项集相关的关键字是这样的:
protected List<Item> getSearchResults(string queryToSearch, string selectedFilter, string notToSearch)
{
Database db = Sitecore.Context.Database;
var index = SearchManager.GetIndex("siteSearchIndexName");
using (SortableIndexSearchContext context = new SortableIndexSearchContext(index))
{
if (!String.IsNullOrWhiteSpace(query))
{
query.ToLower();
CombinedQuery cq = new CombinedQuery();
QueryBase qbKeyword = new FieldQuery("_orderkeywordpair", query);
QueryBase qbContent = new FieldQuery("_content", query);
QueryBase qbHtml = new FieldQuery("html", query);
if (!String.IsNullOrWhiteSpace(selectedFilter) && selectedFilter.ToLower() != "all")
{
QueryBase qbFilter = new FieldQuery("_pagetype", selectedFilter);
cq.Add(qbFilter, QueryOccurance.Must);
}
cq.Add(qbKeyword, QueryOccurance.Should);
cq.Add(qbContent, QueryOccurance.Must);
cq.Add(qbHtml, QueryOccurance.MustNot);
SearchHits hits = context.Search(cq);