ASP.NET 核心 6：服务器返回正确的数组长度但返回空数据

Question

我正在使用 ASP.NET Core 6。我有一个控制器返回数组中正确数量的项目，但是对象本身是空的。

ChartController.cs

[ApiController]
public class ChartController : ControllerBase
{
    [HttpGet]
    [Route("charts/{symbol:alpha}")]
    public IEnumerable<ChartDataOhlc> GetChartData(string symbol)
    {
        List<ChartDataOhlc> data = new List<ChartDataOhlc>()
        {
            new() { DateTime = DateTime.Now, Open = "1", High = "5", Low = "0", Close = "4" },
            new() { DateTime = DateTime.Now, Open = "1", High = "5", Low = "0", Close = "4" },
            new() { DateTime = DateTime.Now, Open = "1", High = "5", Low = "0", Close = "4" },
            new() { DateTime = DateTime.Now, Open = "1", High = "5", Low = "0", Close = "4" },
            new() { DateTime = DateTime.Now, Open = "1", High = "5", Low = "0", Close = "4" },
        };

        // list2.Add(new Test() { A = 1, B = "B1" });
        return (data);
    }
}

ChartDataOhlc.cs

public class ChartDataOhlc
{
    public DateTime DateTime;
    public string Open = null!;
    public string High = null!;
    public string Low = null!;
    public string Close = null!;
}

但我得到的只是[{},{},{},{},{}]

Answer 1

将 ChartDataOhlc class 字段替换为如下属性：

public class ChartDataOhlc
{
    public DateTime DateTime {get; set;}
    public string Open {get; set;} = null!;
    public string High {get; set;} = null!;
    public string Low {get; set;} = null!;
    public string Close {get; set;} = null!;
}

ASP.NET 核心 6：服务器返回正确的数组长度但返回空数据

ASP.NET Core 6 : server returning proper array length but empty data

c#

asp.net-core

.net-6.0