Unified Automation Forum

Hello,

is it possible to specify if input arguments of methods are mandatory (must not be null) or optional (can be null)?

We have created a method with an input argument of type UInt32. It should be possible to call this method by a client with null as argument, but the code generation for the c++-server-stack is checking for non-null and returns BadOutOfRange.

Sincerely yours.

Hello,

In OPC UA all method arguments are mandatory. If you want to use optional method arguments, you have to update the generated code manually.