GroupDocs.Search for .NET 17.11 Release Notes

Major Features

There are 3 enhancements and features in this regular monthly release. The most notable are:

  • Implement support of MSG, EML, EMLX file formats.
  • Improve indexing performance for Pdf documents.
  • Implement Metadata Index feature.

All Changes

SEARCHNET-1238Implement support of MSG, EML, EMLX file formatsEnhancement
SEARCHNET-1257Improve indexing performance for Pdf documentsEnhancement
SEARCHNET-248Implement Metadata Index featureNew Feature

Public API and Backward Incompatible Changes

Implement support of MSG, EML, EMXL file formats

Previously, API allows to index email messages from Microsoft Outlook files (PST and OST). All search results found in OST or PST files are stored in OutlookEmailMessageResultInfo. Now in this enhancement supports for indexing of email messages in MSG, EML, EMXL file formats.

Public API changes


Following is the code to index email messages:


// Create or load index
Index index = new Index(Utilities.indexPath);
index.AddToIndex(Utilities.documentsPath); // Documents with "MSG", "EML", "EMXL" extension will be indexed
SearchResults searchResults = index.Search(searchString);

Improve indexing performance for Pdf documents

Performance of indexing of PDF documents is improved in this enhancement.

Public API changes


Implement MetaData Index

This feature allows indexing only metadata of documents.Metadata index contains only metadata (file name, creation date, and modification date).

Public API changes

Enum IndexType has been added to GroupDocs.Search namespace.
Value Normal has been added to GroupDocs.Search.IndexType enum.
Value MetadataIndex has been added to GroupDocs.Search.IndexType enum.
Property IndexType IndexType has been added to GroupDocs.Search.IndexingSettings class.

Following is the code shows how to create metadata index:


string indexFolder = @"c:\MyIndex";
string documentsFolder = @"c:\MyDocuments";
// Creating indexing settings object
IndexingSettings settings = new IndexingSettings();
settings.IndexType = IndexType.MetadataIndex;

// Creating index
Index index = new Index(indexFolder, settings);

// Indexing