3.1.5.27.1.1.17 IsAnchorValid
Type: CSOM Boolean
Accessibility: Read Only
Gets a Boolean value that specifies whether the Term (section 3.1.5.16) object identified by the AnchorId (section 3.1.5.27.1.1.2) property is valid.
This property returns true if the TaxonomyField (section 3.1.5.27) points to the keywords term set (section 3.1.5.20), or if the TaxonomyField points to the entire TermSet (the AnchorId property returns Guid.Empty).