Opc.Ua.MethodState.ValidateInputArgument C# (CSharp) Method

        protected ServiceResult ValidateInputArgument(
            ISystemContext context,
            Variant inputArgument,
            int index)
        {
            if (InputArguments == null)
            {
                return StatusCodes.BadInvalidArgument;
            }

            IList<Argument> arguments = InputArguments.Value;

            if (arguments == null || index < 0 || index >= arguments.Count)
            {
                return StatusCodes.BadInvalidArgument;
            }

            Argument expectedArgument = arguments[index];

            TypeInfo typeInfo = TypeInfo.IsInstanceOfDataType(
                inputArgument.Value,
                expectedArgument.DataType,
                expectedArgument.ValueRank,
                context.NamespaceUris,
                context.TypeTable);

            if (typeInfo == null)
            {
                return StatusCodes.BadTypeMismatch;
            }

            return ServiceResult.Good;
        }