信号集线器未正确序列化其方法参数的属性

我有一个配置良好的信号集线器,并与客户机进行了良好的通信。 但是我的hub方法接受特定类型的参数,并且表示该类型的类具有Pascal cased属性。如下图所示:

    public List<DataChanges> Changes { get; set; }

    public List<DataChanges> changes { get; set; }

我尝试的是:

    [DataMember(Name = "changes")]
    [JsonProperty("changes")]

在我的startup类中,我添加了signalr json协议,如下所示:

 .AddNewtonsoftJsonProtocol(options =>
        {
            //options.PayloadSerializerSettings.ContractResolver = new SignalRContractResolver();
            //options.PayloadSerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver { NamingStrategy = { OverrideSpecifiedNames = true } };
        })

以下是信号机合同解析程序:

public class SignalRContractResolver : IContractResolver
{
    private readonly Assembly _assembly;
    private readonly IContractResolver _camelCaseContractResolver;
    private readonly IContractResolver _defaultContractSerializer;

    public SignalRContractResolver()
    {
        _defaultContractSerializer = new DefaultContractResolver();
        _camelCaseContractResolver = new CamelCasePropertyNamesContractResolver();
        _assembly = typeof(Startup).GetTypeInfo().Assembly;
    }


    public JsonContract ResolveContract(Type type)
    {
        if (type.GetTypeInfo().Assembly.Equals(_assembly))
            return _defaultContractSerializer.ResolveContract(type);

        return _camelCaseContractResolver.ResolveContract(type);
    }

}

我尝试了一些其他的解决方案,但没有任何效果。信号器无法应用camel大小写序列化,并且我的属性始终为null。

谁能告诉我一个解决办法吗?