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Provides index events for subscribing.
public class EventHub
| Name | Description |
|---|---|
| event ErrorOccurred | Occurs when an error occurs during an index operation. |
| event FileIndexing | Occurs when a document is going to be indexed. |
| event ImagePreparing | Occurs when an image is going to be prepared for indexing. |
| event OperationFinished | Occurs when an index operation is finished. |
| event OperationProgressChanged | Occurs when the progress of the indexing or update operation changes. |
| event OptimizationProgressChanged | Occurs when the progress of the optimization operation changes. |
| event PasswordRequired | Occurs when a document requires password for opening. |
| event SearchPhaseCompleted | Occurs when the search phase is completed. |
| event StatusChanged | Occurs when the index status changes. |
Learn more
The example demonstrates a typical usage of the interface.
string indexFolder = @"c:\MyIndex\";
string documentsFolder = @"c:\MyDocuments\";
string query = "Einstein";
// Creating an index
Index index = new Index(indexFolder);
// Subscribing to the event
index.Events.ErrorOccurred += (sender, args) =>
{
Console.WriteLine(args.Message);
};
// Indexing documents from the specified folder
index.Add(documentsFolder);
// Searching in the index
SearchResult result = index.Search(query);
- namespace GroupDocs.Search.Events
- assembly GroupDocs.Search
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