Newtonsoft.Json.Converters.IsoDateTimeConverter.ReadJson C# (CSharp) Méthode

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            bool nullable = ReflectionUtils.IsNullableType(objectType);
#if !NET20
            Type t = (nullable)
                ? Nullable.GetUnderlyingType(objectType)
                : objectType;
#endif

            if (reader.TokenType == JsonToken.Null)
            {
                if (!ReflectionUtils.IsNullableType(objectType))
                {
                    throw JsonSerializationException.Create(reader, "Cannot convert null value to {0}.".FormatWith(CultureInfo.InvariantCulture, objectType));
                }

                return null;
            }

            if (reader.TokenType == JsonToken.Date)
            {
#if !NET20
                if (t == typeof(DateTimeOffset))
                {
                    return (reader.Value is DateTimeOffset) ? reader.Value : new DateTimeOffset((DateTime)reader.Value);
                }

                // converter is expected to return a DateTime
                if (reader.Value is DateTimeOffset)
                {
                    return ((DateTimeOffset)reader.Value).DateTime;
                }
#endif

                return reader.Value;
            }

            if (reader.TokenType != JsonToken.String)
            {
                throw JsonSerializationException.Create(reader, "Unexpected token parsing date. Expected String, got {0}.".FormatWith(CultureInfo.InvariantCulture, reader.TokenType));
            }

            string dateText = reader.Value.ToString();

            if (string.IsNullOrEmpty(dateText) && nullable)
            {
                return null;
            }

#if !NET20
            if (t == typeof(DateTimeOffset))
            {
                if (!string.IsNullOrEmpty(_dateTimeFormat))
                {
                    return DateTimeOffset.ParseExact(dateText, _dateTimeFormat, Culture, _dateTimeStyles);
                }
                else
                {
                    return DateTimeOffset.Parse(dateText, Culture, _dateTimeStyles);
                }
            }
#endif

            if (!string.IsNullOrEmpty(_dateTimeFormat))
            {
                return DateTime.ParseExact(dateText, _dateTimeFormat, Culture, _dateTimeStyles);
            }
            else
            {
                return DateTime.Parse(dateText, Culture, _dateTimeStyles);
            }
        }
    }

 /// <summary>Reads the JSON representation of the object.</summary>
 /// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
 /// <param name="objectType">Type of the object.</param>
 /// <param name="existingValue">The existing value of object being read.</param>
 /// <param name="serializer">The calling serializer.</param>
 /// <returns>The object value.</returns>
 public override Object ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer)
 {
     return(s_dtConverter.ReadJson(reader, objectType, existingValue, serializer));
 }