How to find if a ManagedMetadata is used in a web application in SharePoint 2010 programmatically

Question

Hi,
Is there any way using SharePoint 2010 server object model that we can find out which managed metadata is used in any of the sites in web application.
Regards, Shruti

Answer 1

You can use the code below. You'll need to check all of the fields in each web, as well as each list, so you'll need to use it in a loop. Also, in my example, I'm just getting the first termset in the first term group in the first term store. You'd want
to change that to the termset you need.
using (var site = new SPSite("http://siteurl"))
TaxonomySession s = new TaxonomySession(site);
TermStore store = s.TermStores[0];
Group group = store.Groups[0];
TermSet termSet = group.TermSets[0];
using (var web = site.RootWeb)
var fields = web.Fields;
foreach (SPField f in fields)
if (f.FieldValueType == typeof (Microsoft.SharePoint.Taxonomy.TaxonomyFieldValueCollection) || f.FieldValueType == typeof (Microsoft.SharePoint.Taxonomy.TaxonomyFieldValueCollection))
var tf = f as TaxonomyField;
if (tf.TermSetId == termSet.Id)
//do something
var log = String.Format("Field {0} is a memeber of TermSet {1}", f.StaticName, termSet.Name);
Regards, Matthew
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