Restrict Search not to show deleted managed property value

Question

The default SharePoint behavior is to also search documents which have been deleted unless the content has been re-crawled or index is reset. I am using a KeywordQuery to search items with a particular managed property and I don't want the deleted items to show up in the result even if content has not been re-crawled or reset.

    query.QueryText = string.Format("Barcode:\"{0}\"", "ABC123");
    query.ResultTypes |= ResultType.RelevantResults;
    query.SelectProperties.Add("Barcode");

The only way I am able to achieve it so far is to add the "Path" property and then checking if the resulting SPListItem is not null.

     query.SelectProperties.Add("Path");

Is there any better way of doing this?

Answer 1

If you have a high ratio of queries compared to deletes, then you might want to add an event receiver which calls CrawlRuleCollection.RemoveFromResults upon deletion of an item