Wednesday, 4 July 2012

Get/Set Values for Managed MetaData Field

Get Terms from the Field:
TaxonomyField commodityGrpFld = (TaxonomyField)web.Fields[“FieldName”];
       // get the Term Store ID from the field
       Guid commodityGrptermStoreId = commodityGrpFld.SspId;
       // Open a taxonomysession and get the correct termstore
       TaxonomySession session = new TaxonomySession(oSite);
       TermStore termStore = session.TermStores[commodityGrptermStoreId];               
       #region get terms from commodity termset
       try
       {
           TermSet termSetCommodity = termStore.GetTermSet(commodityGrpFld.TermSetId);                   
           if (termSetCommodity != null)
           {
               TermCollection CommodityTermColl = termSetCommodity.Terms;
               ArrayList commodityList = new ArrayList();
               foreach (Term commTerm in CommodityTermColl)
               {
                   commodityList.Add(commTerm.Name);
               }
//binding to listbox
               lbCommodityGrp.DataSource = commodityList;
               lbCommodityGrp.DataBind();
            }
        }
        catch (Exception)
        { }
        #endregion
Update the Item value for Managed Metadata field:
TaxonomyField taxoField_Commodity =spfile.Item.Fields[[“FieldName”] as TaxonomyField;
        TaxonomySession taxoSession = new TaxonomySession(oSite);
        TermStore store = taxoSession.TermStores[taxoField_Commodity.SspId];
        TermSet termSet = store.GetTermSet(taxoField_Commodity.TermSetId);
        if (taxoField_Commodity.AllowMultipleValues)
        {                                           
          TermCollection terms = termSet.GetAllTerms();
          List<string> taxonomyValueList = new List<string>();
          foreach (ListItem item in lbCommodityGrp.Items)
          {
            if (item.Selected)
            {
              taxonomyValueList.Add(item.Value);
            }
          }
          TaxonomyFieldValueCollection fieldValues = new TaxonomyFieldValueCollection(taxoField_Commodity);
          foreach (Term term in terms)
          {
             if (taxonomyValueList.Contains(term.Name))
             {
                TaxonomyFieldValue fieldValue = new TaxonomyFieldValue(taxoField_Commodity);
                fieldValue.TermGuid = term.Id.ToString();
                fieldValue.Label = term.Name;
                fieldValues.Add(fieldValue);
             }
          }
          taxoField_Commodity.SetFieldValue(spfile.Item, fieldValues);
       }
Get the Item value for Managed Metadata field:
                We need to convert the item value to TaxonomyFieldValueCollection

1 comment:

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