45 lines
1.2 KiB
C#
45 lines
1.2 KiB
C#
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using Newtonsoft.Json;
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using System.Buffers.Text;
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namespace YLErp.Converter
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{
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public class QuotedLongConverter_Nullable : JsonConverter<long?>
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{
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private const long defaultValue = default(long);
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public override long? ReadJson(JsonReader reader, Type objectType, long? existingValue, bool hasExistingValue, JsonSerializer serializer)
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{
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if (reader.TokenType == JsonToken.String)
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{
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if (string.IsNullOrWhiteSpace(reader.ReadAsString()))
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{
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if (Nullable.GetUnderlyingType(objectType) != null)
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{
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return null;
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}
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return defaultValue;
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}
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if (long.TryParse(reader.ReadAsString(), out long number))
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return number;
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}
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return (long?)reader.Value;
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}
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public override void WriteJson(JsonWriter writer, long? value, JsonSerializer serializer)
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{
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if (!value.HasValue)
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{
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writer.WriteNull();
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}
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else
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{
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writer.WriteValueAsync(value);
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}
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}
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}
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}
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