RE: need some help =)

[Digy]

1. You don't have a field named "contents" in the index. (It is "text") use 
"text" field to search.
2. Use "file_text" string while indexing ( not encoding.GetBytes(file_text) )
3. You should index the "text" field as ANALYZED.
4. You have to read some manuals before starting to code.

DIGY

-----Original Message-----
From: asmcad [mailto:asm...@gmail.com] 
Sent: Wednesday, November 17, 2010 10:02 PM
To: lucene-net-dev
Subject: need some help =)


it's a simple index and search application but i couldn't make it work. 
it doesn't give any error but it  doesn't give any results too.

   1.
      using System;
   2.
      using System.Collections.Generic;
   3.
      using System.ComponentModel;
   4.
      using System.Data;
   5.
      using System.Drawing;
   6.
      using System.Linq;
   7.
      using System.Text;
   8.
      using System.Windows.Forms;
   9.
      using Lucene.Net;
  10.
      using Lucene.Net.Analysis.Standard;
  11.
      using Lucene.Net.Documents;
  12.
      using Lucene.Net.Index;
  13.
      using Lucene.Net.QueryParsers;
  14.
      using Lucene.Net.Search;
  15.
      using System.IO;
  16.
  17.
      namespace newLucene
  18.
      {
  19.
      public partial class Form1 : Form
  20.
      {
  21.
      public Form1()
  22.
      {
  23.
                   InitializeComponent();
  24.
      }
  25.
  26.
      private void buttonIndex_Click(object sender, EventArgs e)
  27.
      {
  28.
                   IndexWriter indexwrtr = new
      IndexWriter(@"c:\index\",new StandardAnalyzer() , true);
  29.
                   Document doc = new Document();
  30.
      string filename = @"fer.txt";
  31.
                   Lucene.Net.QueryParsers.QueryParser df;
  32.
  33.
  34.
  35.
      System.IO.StreamReader local_StreamReader = new
      System.IO.StreamReader(@"C:\z\fer.txt");
  36.
      string  file_text = local_StreamReader.ReadToEnd();
  37.
  38.
      System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
  39.
                   doc.Add(new
      Field("text",encoding.GetBytes(file_text),Field.Store.YES));
  40.
                   doc.Add(new
      Field("path",encoding.GetBytes(@"C:\z\"),Field.Store.YES));
  41.
                   doc.Add(new Field("title",
      encoding.GetBytes(filename), Field.Store.YES));
  42.
                   indexwrtr.AddDocument(doc);
  43.
  44.
                   indexwrtr.Optimize();
  45.
                   indexwrtr.Close();
  46.
  47.
      }
  48.
  49.
      private void buttonSearch_Click(object sender, EventArgs e)
  50.
      {
  51.
                   IndexSearcher indxsearcher = new
      IndexSearcher(@"C:\index\");
  52.
  53.
                   QueryParser parser = new QueryParser("contents", new
      StandardAnalyzer());
  54.
                   Query query = parser.Parse(textBoxQuery.Text);
  55.
  56.
      //Lucene.Net.QueryParsers.QueryParser qp = new
      QueryParser(Lucene.Net.QueryParsers.CharStream
      s).Parse(textBoxQuery.Text);
  57.
                   Hits hits = indxsearcher.Search(query);
  58.
  59.
  60.
      for (int i = 0; i < hits.Length(); i++)
  61.
      {
  62.
  63.
                       Document doc = hits.Doc(i);
  64.
  65.
  66.
      string filename = doc.Get("title");
  67.
      string path = doc.Get("path");
  68.
      string folder = Path.GetDirectoryName(path);
  69.
  70.
  71.
                       ListViewItem item = new ListViewItem(new string[]
      { null, filename, "asd", hits.Score(i).ToString() });
  72.
                       item.Tag = path;
  73.
  74.
      this.listViewResults.Items.Add(item);
  75.
                       Application.DoEvents();
  76.
      }
  77.
  78.
                   indxsearcher.Close();
  79.
  80.
  81.
  82.
  83.
      }
  84.
      }
  85.
      }


thanks