Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.5k views
in Technique[技术] by (71.8m points)

c# - Json.NET decimal precision loss

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?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

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.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

57.0k users

...