C# 删除反序列化Web API 2 C中的NaN值#

您好，我想知道是否有人可以帮助我，我正在尝试在Web API 2中自动反序列化时，自动将双值NaN替换为0。我正在尝试使用JSON.NET，但没有成功。任何帮助都将不胜感激。我正在将下面的内容放入我的WebApiConfig

config.Formatters.JsonFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/html"));

MediaTypeHeaderValue appXmlType = config.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "application/xml");
config.Formatters.XmlFormatter.SupportedMediaTypes.Remove(appXmlType);

JsonMediaTypeFormatter jsonFormatter = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
jsonFormatter.SerializerSettings.FloatFormatHandling = Newtonsoft.Json.FloatFormatHandling.DefaultValue;
jsonFormatter.SerializerSettings.MissingMemberHandling = MissingMemberHandling.Ignore;
jsonFormatter.SerializerSettings.Formatting = Newtonsoft.Json.Formatting.None;
jsonFormatter.SerializerSettings.DateFormatHandling = DateFormatHandling.IsoDateFormat;
jsonFormatter.SerializerSettings.FloatParseHandling =  FloatParseHandling.Double;
jsonFormatter.SerializerSettings.DefaultValueHandling =  DefaultValueHandling.Populate;

NaN值不会被删除，而是以

public double Price { get; set; }

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因此，在一个数字的内部，我得到了NaN。

我最终找到了解决读写问题的方法

jsonFormatter.SerializerSettings.Converters.Add(new FloatConverter());

public class FloatConverter : JsonConverter
{
    public override bool CanRead
    {
        get
        {
            return true;
        }
    }

    public override bool CanWrite
    {
        get
        {
            return true;
        }
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        if (value == null)
        {
            writer.WriteNull();
            return;
        }

        var val = Convert.ToDouble(value);
        if (Double.IsNaN(val) || Double.IsInfinity(val))
        {
            writer.WriteNull();
            return;
        }
        if (value is float)
            writer.WriteValue((float)value);
        else
            writer.WriteValue((double)value);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        if (reader.TokenType == JsonToken.Null)
            return null;

        var value = JValue.Load(reader);
        var val = Convert.ToDouble(value);

        if (objectType == typeof(Double))
        {
            if (Double.IsNaN(val) || Double.IsInfinity(val))
                return (Double)0.00;
            else
                return (Double)value;
        }

        if (objectType == typeof(float?))
            return (float?)value;
        else
            return (float)value;
    }

    public override bool CanConvert(Type objectType)
    {
        return objectType == typeof(double) || objectType == typeof(float);
    }
}

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