将具有字符串属性的对象数组转换为 c# 中的字符串数组

Question

I'm trying to convert an array of objects that has a string property to an array of strings.

For example:

"temperature_controlled_transport": [
        {
            "data": "0"
        },
        {
            "data": "test" 
        }
    ]

Should become:

"temperature_controlled_transport": ["0", "1"]

I tried with the following code:

TemperatureControlledTransport = Array.ConvertAll(pimproduct.Values.TemperatureControlledTransport, x => x.Data)

But when the object is null, this does not work and throws an exception. How can I make this work with null values?

Also, this code is inside the creation of an object, so I cant use if blocks:

SHEQdata = new SHEQdata
            {
                TemperatureControlledTransport = Array.ConvertAll(pimproduct.Values.TemperatureControlledTransport , x => x.Data)
            }

Also, I have to do this with ~40 properties, so if there is a better way of doing this, please let me know:)

Thank you!

Answer 1

How about using the null-coalescing operator?

TemperatureControlledTransport = Array.ConvertAll(pimproduct.Values.TemperatureControlledTransport ?? new TemperatureControlledTransport[] { }, x => x.Data)