Delete documents from an index

You can delete individual documents from the index using the IClient interface's Delete method. For example, the code below deletes a BlogPost with ID 42.

client.Delete<BlogPost>(42);

You can delete documents that match the criteria defined in a filter expression. For example, the code below deletes documents of type BlogPost, and those of a type inheriting from BlogPost that are tagged with "Banana."

client.Delete<BlogPost>(x => x.Tags.Match("Banana"));

You can also delete documents that match criteria defined in a filter expression and on multiple fields. The code below deletes documents of type BlogPost, and those of a type inheriting from BlogPost that are tagged with "Banana" and whose author name contains "Fredrik."

client.Delete<BlogPost>(x => x.Tags.Match("Banana") & x.Name.Match("Fredrik"))

When deleting documents from the recycle bin, make sure that you only delete if a document returns shouldIndex=true for CheckPublishedStatus && DisableIndexing. In this way, you avoid many 404 errors when Optimizely Search & Navigation tries to delete an unindexed document from the recycle bin.