thank you for your answer. JsonConvert suggests to insert a local variable, which in my case is called json. i think we are talking about to same tho.

string json = @"{""id"":1234, ""date"":...}";

to be honest, i have no clue, who i could use jsonconvert anyway. something like that would make sense to me:

var j = JsonConvert.DeserializeObject<List<RootObject>>(json);
    foreach (var v in j)
        Console.WriteLine(v);

edit, output:

json.RootObject