c# validation nullable value

Hi, We have a swagger spec with a value that is conditional/optional i.e. can be null with some validation constraints this is presented like so:

        "totalThroughputMibps": {
          "type": "number",
          "x-nullable": true,
          "description": "Total throughput of pool in Mibps",
          "example": 164.221,
          "readOnly": true,
          "multipleOf": 0.001
        }

This causes issues with c# generated SDK where the validation code does not allow null values.

            public double? TotalThroughputMibps { get; private set; }
.
.
.
.
.
            if (TotalThroughputMibps % 0.001 != 0)
            {
                throw new ValidationException(ValidationRules.MultipleOf, "TotalThroughputMibps", 0.001);
            }

Is it possible to present this in the swagger so that the validation in the generated code handles null values correctly?

[pakrym]

As to the original issue in this thread, I believe it’s fixed as part of https://github.com/Azure/autorest.csharp/issues/885.

Try adding --use:@microsoft.azure/autorest.csharp@2.3.90 to your command line.

[audunn]

@daviwil apologies for the late reply, yes indeed this does seem to fix the issue.