Sets the referenced file that corresponds to the instance sopInstanceUid in the Instance table.
sopInstanceUid
The SOP Instance UID that identifies the instance
referencedFile
The referenced file
If a Leadtools.Dicom.DicomDataSet is stored locally, the referencedFile gives the full path of the location. If a Leadtools.Dicom.DicomDataSet is stored externally (and not locally), the referencedFile is the empty string.