public void IndexSpellCheckDictionary(string dbIndexName, string spellIndex)
{
LuceneIndex index = (LuceneIndex)ContentSearchManager.GetIndex(dbIndexName);
IndexReader reader = index.CreateReader(LuceneIndexAccess.ReadOnly);
FSDirectory dir = FSDirectory.Open(spellIndex);
var spell = new SpellChecker.Net.Search.Spell.SpellChecker(dir);
string fieldName = "description";
LuceneDictionary dictionary = new LuceneDictionary(reader, fieldName);
spell.IndexDictionary(dictionary, 10, 32);
}