在json.net中转换为DateTime

Question

I'm trying to deserialize the following:

{"ts":"2012-04-22 04:14:50,669", "msg":"Hello"}

into

public class LogEntry
{
    public DateTime Ts { get; set; }
    public string Msg { get; set; }
}

using

var logEntry = JsonConvert.DeserializeObject<LogEntry>(line);

But get a JsonSerializationException saying "{"Error converting value \\"2012-04-22 04:14:28,478\\" to type 'System.DateTime'. Line 1, position 31."}. I cannot change the log format.

I think I might need to parse the date string myself using a Converter. However, I cannot find any examples of JsonConverter that seem relevant. Specifically how to read the value from the reader in the ReadJson method.

Are there any simple examples that I should look at? Or am I going about this the wrong way?

Answer 1

The format on your DateTime string uses a comma for the decimal separator ( ,478 ). You may be able to initialise a JsonSerializerSettings object ( documented here ) with an appropriate Culture , and then deserialise using DeserializeObject<T>(value, settings) ( documented here ). This would deserialise using the culture you specify rather than the default InvariantCulture .

Answer 2

I suspect the issue is because the value you are getting is using a comma as the decimal separator which suggests it was created in a locale that uses commas (eg a lot of European languages other than English). You could try changing your locale to match so that the parsing would work?