c# - Lucene boosting / scoring with multiple columns -

how take following data , able results below?

ive included code sample cant seem figure out how search through multiple columns , apply boost need.

am going right way?

boost / weight each column

first name = 100  last name = 75  bio = 50 

data

first name, last name, bio

benny, benson, test  - "ben" appears in first name , last name  - score = 175  jim, smith, test word ben  - "ben" appears in bio  - score = 50  john, benson, , test here  - "ben" appears in last name  - score = 75 

results

1. benny 2. john 3. jim  protected override void _addtoluceneindex(dynamic item, indexwriter writer) {     var user = item usertestitem;     if (user == null) return;      // remove older index entry     var searchquery = new termquery(new term(user_id, user.userid.tostring(cultureinfo.invariantculture)));     writer.deletedocuments(searchquery);      // add new index entry     var doc = new document();      // fields     var userid = new field(user_id, user.userid.tostring(cultureinfo.invariantculture), field.store.yes, field.index.not_analyzed);     var firstname = new field(first_name, user.firstname ?? string.empty, field.store.yes, field.index.analyzed, field.termvector.yes);     var lastname = new field(last_name, user.lastname ?? string.empty, field.store.yes, field.index.analyzed, field.termvector.yes);     var bio = new field(bio, user.bio ?? string.empty, field.store.yes, field.index.analyzed, field.termvector.yes);      // add boosts     firstname.boost = 100f;     lastname.boost = 75f;     bio.boost = 50f;      // add lucene fields mapped db fields     doc.add(userid);     doc.add(firstname);     doc.add(lastname);     doc.add(bio);      // add entry index     writer.adddocument(doc); }  public string[] fieldstosearch { get; set; } // i.e. "firstname", "lastname", "bio"  public usersearchresults searchusers(string searchquery, bool exact = false) {     var results = new usersearchresults();      if (!string.isnullorempty(searchquery))     {         //searchquery = prepareinput(searchquery, exact);          try         {             using (var searcher = new indexsearcher(indexdirectory, false))             {                 var analyzer = new standardanalyzer(lucene_version);                  // search multiple fields (ordered relevance)                 var parser = new multifieldqueryparser(lucene_version, fieldstosearch, analyzer);                 parser.allowleadingwildcard = true;                 parser.defaultoperator = exact ? queryparser.and_operator : queryparser.or_operator;                  var multifieldquery = parsequery(searchquery, parser);                  var hits = searcher.search(multifieldquery, null, searchresultlimit, sort.relevance);                 var docs = hits.scoredocs;                  results.items = _maplucenetodatalist(docs, searcher).cast<usertestitem>().tolist();                 results.total = results.items.count;                  results.rawquery = lastusedquery.tostring();                  analyzer.close();                 searcher.dispose();             }         }         catch (exception ex)         {             debug.writeline(ex.tostring());         }     }      return results; } 

you can pass boosts directly multifieldqueryparser, example:

var boosts = new dictionary<string, float> {     {"first name", 100},     {"last name", 75},     {"bio", 50}, } var parser = new multifieldqueryparser(lucene_version, fieldstosearch, analyzer, boosts);