Skip to content
| Marketplace
Sign in
Visual Studio>Controls>GroupDocs.Search for .NET

GroupDocs.Search for .NET

GroupDocs

|
26 clicks
| (0) | Trial
Add text-search and data indexing features to your own C#, ASP.NET or any type of .NET application.

.NET API for Document Indexing & Text Search

Class Library to Index Data & Search Text in all popular document formats from Microsoft Word, Excel, PowerPoint, OneNote, Outlook as well as PDF, e-books, archives & more.

C# Document Search Engine

  • Create index in memory or on the local disk.
  • Merge several indexes.
  • Improve search performance by optimizing index.
  • Index password-protected files.
  • Index with stop words.
  • Support for indexing additional fields.
  • Supports blended characters.
  • Support for characters indexed as a whole word.
  • Support for character replacement during indexing.
  • Support for custom text extractors.
  • Option for compact and metadata index.
  • Save extracted text in index with different level of compression.
  • Document filtering during indexing.
  • Delete indexed paths from index.
  • Filter documents in search results.
  • Search for different object types, such as, text, numbers, dates, filenames etc.
  • Combining different types of search into one search query.
  • Alias substitution in search queries.
  • Perform spell check during search.
  • Perform keyboard layout correction during search.
  • Search queries in text or flexible object form.
  • Highlighting search results in the text of the entire document or in text segments.
  • Multiple simultaneous thread safe search.
  • Thread safe search during indexing, updating or merging operation.
  • Search over several indexes simultaneously.

New Features & Enhancements in Version 20.11

  • Get synonyms for a word as well as get synonym groups associated with a word.
  • Get homophones for a word and as well as get homophone groups to which a word belongs to.

Please visit GroupDocs.Search for .NET 20.11 Release Notes for the detailed notes.

Content Indexing

Word Processing: DOC, DOT, DOCX, DOCM, DOTX, DOTM, TXT, ODT, OTT, RTF
Spreadsheets: XLS, XLT, XLSX, XLSM, XLSB, XLTX, XLTM, XLA, XLAM, ODS, OTS, CSV, TSV, XML
Presentations: PPT, PPS, POT, PPTX, PPTM, POTX, POTM, PPSX, PPSM, ODP
Emails: PST, OST, EML, EMLX, MSG
Notes: ONE
Archives: ZIP
Portable: PDF
Markup: HTML, XHTML, MHTML, MD, XML
eBook: CHM, EPUB, FB2

Metadata Indexing

Word Processing: DOC, DOT, DOCX, DOCM, DOTX, DOTM, TXT, ODT, OTT, RTF
Spreadsheets: XLS, XLT, XLSX, XLSM, XLSB, XLTX, XLTM, XLA, XLAM, ODS, OTS, CSV, TSV, XML
Presentations: PPT, PPS, POT, PPTX, PPTM, POTX, POTM, PPSX, PPSM, ODP
Emails: PST, OST, EML, EMLX, MSG
Notes: ONE
Archives: ZIP
Audio: MP3, WAV
Portable: PDF
Markup: HTML, XHTML, MHTML, MD, XML
eBook: CHM, EPUB, FB2
Image: BMP, GIF, JP2, PNG, WEBP, TIFF, JPG, PSD, DJVU, DICOM
Metafiles: EMF, WMF
Project Management: MPP
Torrent: TORRENT
Visio Diagram: VSD, VSS
Medical Imagery: DCM
Video: AVI, MOV, QT, FLV, ASF

Search Types

  • Simple word
  • Boolean
  • Regular expression
  • Faceted
  • Case sensitive
  • Flexible fuzzy
  • Synonym
  • Homophone
  • Wildcard
  • Phrase
  • Data range
  • Numeric range
  • Search by chunks
  • Object type search

Platform Independence

GroupDocs.Search for .NET does not require any external software or third party tool to be installed. GroupDocs.Search for .NET supports any 32-bit or 64-bit operating system where .NET or Mono framework is installed. The other details are as follows:

Microsoft Windows: Microsoft Windows Desktop (x86, x64) (XP & up), Microsoft Windows Server (x86, x64) (2000 & up), Windows Azure
macOS: Mac OS X
Linux: Linux (Ubuntu, OpenSUSE, CentOS and others)
Development Environments: Microsoft Visual Studio (2010 & up), Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop 2.4 and later.
Supported Frameworks: GroupDocs.Search for .NET supports .NET and Mono frameworks.

Perform Regular Expression Search

string indexFolder = @"c:\MyIndex\";
string documentsFolder = @"c:\MyDocuments\";

// creating an index in the specified folder
Index index = new Index(indexFolder);

// indexing documents from the specified folder
index.Add(documentsFolder);

// search for the phrase in text form
// the first caret character at the beginning indicates that this is a regular expression search query
string query1 = "^^(.)\\1{1,}";
// search for two or more identical characters at the beginning of a word
SearchResult result1 = index.Search(query1); 

// search for the phrase in object form
// search for two or more identical characters at the beginning of a word
SearchQuery query2 = SearchQuery.CreateRegexQuery("^(.)\\1{1,}");
SearchResult result2 = index.Search(query2);

Spell Check with Smart Search

string indexFolder = @"c:\MyIndex\";
string documentsFolder = @"c:\MyDocuments\";

// creating an index in the specified folder
Index index = new Index(indexFolder);

// indexing documents from the specified folder
index.Add(documentsFolder);

// creating a search options instance
SearchOptions options = new SearchOptions();
// enabling the spelling correction
options.SpellingCorrector.Enabled = true;
// setting the maximum number of mistakes
options.SpellingCorrector.MaxMistakeCount = 1;
// enabling the option for only the best results of the spelling correction
options.SpellingCorrector.OnlyBestResults = true;

// search for the word "Rleativity" containing a spelling error
// the word "Relativity" will be found that differs from the search query in two transposed letters
SearchResult result = index.Search("Rleativity", options);

Product Page | Docs | Demos | API Reference | Examples | Blog | Free Support | Temporary License

  • Contact us
  • Jobs
  • Privacy
  • Terms of use
  • Trademarks
© 2019 Microsoft