C# automapper 将日期时间格式化为 iso 字符串

Question

当 Automapper 将转换为对象的 DateTime 转换为字符串时，它使用 ToString() 方法，该方法 returns 一个字符串，其格式由文化。如何配置它以使其始终映射到 ISO 字符串？

var data = new Dictionary<string, object> { { "test", new DateTime(2016, 7, 6, 9, 33, 0) } }; var config = new MapperConfiguration(cfg => { cfg.CreateMap<DateTime, string>().ConvertUsing(dt => dt.ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ")); }); var mapper = config.CreateMapper(); Assert.AreEqual("2016-07-06T07:33:00Z", mapper.Map<string>(data["test"])); Assert.AreEqual("2016-07-06T07:33:00Z", mapper.Map<IDictionary<string, string>>(data)["test"]);

第一个断言没问题，但第二个断言失败了：

Result Message: Expected string length 20 but was 17. Strings differ at index 0. Expected: "2016-07-06T07:33:00Z" But was: "6-7-2016 09:33:00" -----------^

Answer 1

这是一个如何执行此操作的示例：

示例模型：

class A
{
    public DateTime DateTime { get; set; }
}

class B
{
    public string DateTime { get; set; } 
}

代码片段：

static void Main()
{
    var config = new MapperConfiguration(
        cfg =>
            {
                cfg.CreateMap<A, B>();
                cfg.CreateMap<DateTime, string>().ConvertUsing(dt => dt.ToString("u"));
            });

    var mapper = config.CreateMapper();

    var a = new A();

    Console.WriteLine(a.DateTime); // will print DateTime.ToString
    Console.WriteLine(mapper.Map<B>(a).DateTime); // will print DateTime in ISO string
    Console.ReadKey();
}

代码段#2：

static void Main()
{
    var data = new Dictionary<string, DateTime> // here is main problem
    {
        { "test", new DateTime(2016, 7, 6, 9, 33, 0) }
    };

    var config = new MapperConfiguration(cfg =>
    {
        cfg.CreateMap<DateTime, string>().ConvertUsing(dt => dt.ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ"));
    });

    var mapper = config.CreateMapper();

    Console.WriteLine(mapper.Map<string>(data["test"]));
    Console.WriteLine(mapper.Map<IDictionary<string, string>>(data)["test"]);
    Console.ReadKey();
}

C# automapper 将日期时间格式化为 iso 字符串

C# automapper format datetime to iso string

c#

automapper