Fix type check

asn1_value_editor/sdlHandler.py

@@ -842,6 +842,8 @@ class sdlHandler(QObject):
             if sort:
                 typename = sort.ReferencedTypeName.replace('-', '_')
                 ty = self.proc.dataview[sort.ReferencedTypeName]
+            else:
+                ty = None
             item = QTableWidgetItem(name)
             item.setFlags(Qt.ItemIsEnabled)
             # Associate the ASN.1 data type as hidden data