Content type with Managed Metadata Feature receiver02

mmSetTaxonomyField.cs

/// <summary>
/// Set the correct values for an Managed Metadata field
/// </summary>
/// <param name="site"><see cref="SPSite"/> object</param>
/// <param name="fieldId"><see cref="GUID"/> from the field to be updated</param>
/// <param name="Termstore">Name of the Term Store</param>
/// <param name="TermGroup">Name of the Term Group</param>
/// <param name="Termset">Name of the Term set</param>
private void SetTaxonomyField(SPSite site, Guid fieldId, string TermGroup, string Termset, string Term)
{
    if (site.RootWeb.Fields.Contains(fieldId))
    {
        TaxonomySession session = new TaxonomySession(site);

        if (session.DefaultKeywordsTermStore != null)
        {
            var termStore = session.DefaultKeywordsTermStore;
            var group = termStore.Groups.GetByName(TermGroup);
            var termSet = group.TermSets[Termset];
            var termSetID = termSet.Id;
            Guid anchorId = new Guid();
            if (!string.IsNullOrEmpty(Term))
            {
                Term anchor = termSet.GetTermByPath(Term);
                anchorId = anchor.Id;
            }

            TaxonomyField field = site.RootWeb.Fields[fieldId] as TaxonomyField;

            // Connect to MMS 
            field.SspId = termSet.TermStore.Id;
            field.TermSetId = termSetID;
            if (anchorId != new Guid())
                field.AnchorId = anchorId;
            field.TargetTemplate = string.Empty;
            field.Update();
        }
        else
        {
            throw new TermStoreOperationException(string.Format("DefaultKeywordsTermStore not found in site: {0}", site.Url));
        }
    }
    else
    {
        throw new ArgumentException(string.Format("Field {0} not found in site {1}", fieldId, site.Url));
    }
}