为了按照您的需求对FooCollection
类进行序列化,您可能需要创建一个定制的JsonConverter
。由于您还没有发布任何代码,我将仅以示例为例来说明。假设您的Foo
和FooCollection
类如下所示:
class Foo
{
public int Id { get; set; }
public string Name { get; set; }
}
class FooCollection : IEnumerable<Foo>
{
private List<Foo> list = new List<Foo>();
public void Add(Foo foo)
{
list.Add(foo);
}
public Foo this[string name]
{
get { return list.Find(f => f.Name == name); }
}
public IEnumerator<Foo> GetEnumerator()
{
return list.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return ((IEnumerable)list).GetEnumerator();
}
}
以下转换器将序列化
FooCollection
,就好像它是一个字典。我假设你想要转换器使用每个
Foo
的
Name
属性值作为序列化的键(以匹配集合上的索引器),所以我是这样实现的。你可以通过修改
GetFooKey()
方法来改变它到其他的东西。
class FooCollectionConverter : JsonConverter
{
public override bool CanConvert(Type objectType)
{
return (objectType == typeof(FooCollection));
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
writer.WriteStartObject();
foreach (Foo foo in (FooCollection)value)
{
writer.WritePropertyName(GetFooKey(foo));
serializer.Serialize(writer, foo);
}
writer.WriteEndObject();
}
private string GetFooKey(Foo foo)
{
return foo.Name;
}
public override bool CanRead
{
get { return false; }
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
throw new NotImplementedException();
}
}
这是一个示例程序,演示如何使用转换器。
class Program
{
static void Main(string[] args)
{
FooCollection coll = new FooCollection();
coll.Add(new Foo { Id = 1, Name = "Moe" });
coll.Add(new Foo { Id = 2, Name = "Larry" });
coll.Add(new Foo { Id = 3, Name = "Curly" });
JsonSerializerSettings settings = new JsonSerializerSettings();
settings.Converters.Add(new FooCollectionConverter());
settings.Formatting = Newtonsoft.Json.Formatting.Indented;
string json = JsonConvert.SerializeObject(coll, settings);
Console.WriteLine(json);
}
}
以下是上述程序的输出结果:
{
"Moe": {
"Id": 1,
"Name": "Moe"
},
"Larry": {
"Id": 2,
"Name": "Larry"
},
"Curly": {
"Id": 3,
"Name": "Curly"
}
}
演示代码: https://dotnetfiddle.net/wI2iQG