How can I conditionally serialize some variables of a class in C# using system.text.json.
Earlier I was using shouldserialize keyword in newtonsoft json. But now i am supposed to move everything to text.json.

Is there alternative to shouldserialize keyword in here?

I tried many things like for a variable setter{return null} when condition occur ,then using jsonignore to ignore null.
But this thing doesn’t work on Byte ,Word , Dword like .

Please guide me how can i ignore some variables of my object when serializing into json. Lets say when bool read is true ,i need specific set of vars and when not then others.