Caml query using managed metadata column

Question

hi,
 I am having a console appln, where i want  to pass the one paramater in the form of siteCol1:subsite1:subsite2  where  siteCol1:subsite1:subsite2 is the path of subsite which is in MMS.
Can i pass this string paramter to the splist which contains a taxonomy column   and match this paramter in the listitemcollection and fetch only those recordw which matches this crirteria.
and it should fetch the values which matches in a splist. the caml query it expects contains the taxonomy -managed metadata column - , but i am stuck with
SPList splistLIST = parenttWeb.Lists.TryGetList("LIST1");
                      if ((splistLIST.Items.Count > 0 && splistLIST!= null))
                          SPQuery   objnodeQuery = new SPQuery();
                          objnodeQuery.Query =
                              string.Format(
       "<OrderBy>" +
          "<FieldRef Name='ID' />" +
       "</OrderBy>" +
       "<Where>" +
          "<Eq>" +
             "<FieldRef Name='myTaxonomy' />" +
             "<Value Type='Text'>{0}</Value>" +
          "</Eq>" +
       "</Where>", _mcurrentPathTermSet);
                          SPListItemCollection nodeItemCollection = splistLIST1.GetItems(objnodeQuery);
am not able to retrieve the listitems which passes this as a parameter and retrieve those records where it matches this taxonomy column.
my doubt is, how to pass a string parameter to the splist contains taxonomy column and fetch those records

Answer 1

Hi,
Managed metada column does not supported in lookup column as the thread below:
https://social.technet.microsoft.com/Forums/en-US/0dee5ba4-9648-445f-a774-8c59cf01b81c/confirmation-needed-cant-lookup-managed-metadata-field-with-lookup-column?forum=sharepointgeneralprevious
If you prefer managed metadata in Search, then I'd suggest you find workaround to use managed metadata column in lookup column. You could use a workflow to copy the managed metadata column to a text field, make the text field to be hidded from the list if
necessary. Then lookup this text field in other list.
Regards,
Rebecca Tu
TechNet Community Support