VersionConverter
Converts a Version to and from a string (e.g. "1.2.3.4").
using Newtonsoft.Json.Utilities;
using System;
using System.Globalization;
using System.Runtime.CompilerServices;
namespace Newtonsoft.Json.Converters
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
public class VersionConverter : JsonConverter
{
public override void WriteJson(JsonWriter writer, [System.Runtime.CompilerServices.Nullable(2)] object value, JsonSerializer serializer)
{
if (value == null)
writer.WriteNull();
else {
if (!(value is Version))
throw new JsonSerializationException("Expected Version object value");
writer.WriteValue(value.ToString());
}
}
[return: System.Runtime.CompilerServices.Nullable(2)]
public override object ReadJson(JsonReader reader, Type objectType, [System.Runtime.CompilerServices.Nullable(2)] object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
return null;
if (reader.TokenType == JsonToken.String)
try {
return new Version((string)reader.Value);
} catch (Exception ex) {
throw JsonSerializationException.Create(reader, "Error parsing version string: {0}".FormatWith(CultureInfo.InvariantCulture, reader.Value), ex);
}
throw JsonSerializationException.Create(reader, "Unexpected token or value when parsing version. Token: {0}, Value: {1}".FormatWith(CultureInfo.InvariantCulture, reader.TokenType, reader.Value));
}
public override bool CanConvert(Type objectType)
{
return objectType == typeof(Version);
}
}
}