How to write in a Json File

Hi everyone.
My situation is: I have Json that I deserialize and assign to a List. Then I add an item to the collection and everything wents fine till I found the question “how to write inside the json and save it?” and I can’t found no answer for that. Does anybody know something about that?

1 Like

Maybe there isn’t any way to do it.

Is there any one have any solution?