Added null check to structureType.DefaultEncodingId (#1571)

Added null check to structureType.DefaultEncodingId in the ReadNonValueAttribute method
OPCFoundation · Nov 2, 2021 · f090f61 · f090f61
1 parent 0915063
commit f090f61
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Stack/Opc.Ua.Core/Stack/State/DataTypeState.cs b/Stack/Opc.Ua.Core/Stack/State/DataTypeState.cs
@@ -191,7 +191,8 @@ public override void Update(ISystemContext context, BinaryDecoder decoder, Attri
                     if (ServiceResult.IsGood(result))
                     {
                         if (dataTypeDefinition?.Body is StructureDefinition structureType &&
-                            structureType.DefaultEncodingId.IsNullNodeId)
+                            (structureType.DefaultEncodingId == null ||
+                             structureType.DefaultEncodingId.IsNullNodeId))
                         {
                             // one time set the id for binary encoding, currently the only supported encoding
                             structureType.SetDefaultEncodingId(context, NodeId, null);