Json.NET decimal precision loss

Question

I have an issue with deserializing decimal value.

JObject.Parse("{\"available\":8777.831438322572000}")

If I type this code in VS under debugger the result is

"available": 8777.8314383225716

If I try this

obj.Value<decimal>("available")

the result is 8777.83143832257

Where am I wrong? What api methods should I use to get correct results?

Answer 1

I find out that this problem doesn't relate to methods which take destination type as an argument. In case of untyped version method there is a setting which allows to change how json.net treats string with decimal separator. JsonReader.FloatParseHandling default value is FloatParseHandling.Double In my case the way to get correct results is:

JObject.Load(new JsonTextReader(new StringReader(value)) { FloatParseHandling = FloatParseHandling.Decimal }, null)

JsonSerializer and JsonSerializerSettings contain the same setting.