minor: plate view not shown for contained data sets

SVN: 23616

screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/PlateDatasetViewer.java

@@ -63,7 +63,9 @@ public final class PlateDatasetViewer extends GenericDataSetViewer
     protected List<TabContent> createAdditionalSectionPanels(ExternalData dataset)
     {
         List<TabContent> sections = new ArrayList<TabContent>();
-        sections.add(new PlateLayoutDatasetSection(screeningViewContext, datasetId));
+
+        if (dataset.tryGetContainer() == null)
+            sections.add(new PlateLayoutDatasetSection(screeningViewContext, datasetId));
         return sections;
     }
 }