Add and remove taxonomies: Remove a taxon from the associated content item

To remove the Taxon from the content items, you need to perform the following:

1. Use TaxonomyManager which is the manager class for Taxonomies
   
   
   var taxonomyManager = TaxonomyManager.GetManager();
   
   
2. Use ContentManager which is the manager class for Content. 
   We’re using the ContentManager class as an example but you can use it for all ContentTypes including Dynamic content.
   
   
   var contentManager = ContentManager.GetManager();
   
   
3. Lookup the Category as a HierarchicalTaxon
   
   
   var taxon = taxonomyManager.GetTaxa<HierarchicalTaxon>().FirstOrDefault(s => s.Title == name);
   
   
4. Lookup the content items associated with the Category
   
   
   var contentItems = contentManager.GetContent().Where(c => c.GetValue<IList<Guid>>("Category").Contains(taxon.Id));
   
   
5. Loop through the content items and remove the taxon. Use the Organizer’s RemoveTaxon method. To remove multiple Taxons or Taxa you can use the RemoveTaxa method instead.
   
   
   foreach (var contentItem in contentItems)

            {

                contentItem.Organizer.RemoveTaxa("Category", new[] { taxon.Id});

            }
   
   
6. Finally call the manager’s SaveChanges method to persist the changes to the database
   
   
   taxonomyManager.SaveChanges();

NOTE: UrlNameCharsToReplace and UrlNameReplaceString are two constants that you will need to define as follows: