I want to sort index in Lucene.net how I can make descending of this one in c#?

I have the code for sorting results from Lucene.net, but I need this search resu开发者_开发知识库lt sorted in descending order:

var sort = new Lucene.Net.Search.Sort(
    new Lucene.Net.Search.SortField("date", Lucene.Net.Search.SortField.LONG));

Lucene.Net.Search.Sort constructor has an overload to reverse sorting order :

var sort = new Lucene.Net.Search.Sort(
    new Lucene.Net.Search.SortField("date", Lucene.Net.Search.SortField.LONG),
    true);

From : http://www.google.com/codesearch/p?hl=en#sbnThrht2Bk/trunk/Lucene.Net/Search/Sort.cs&q=Lucene.Net.Search.Sort&sa=N&cd=1&ct=rc