在这种情况下，计算时间的最准确方法是什么？

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问题描述

嗨！

我正在研究一个我想在MVC 5应用程序中使用的时间跟踪系统。

这是我到目前为止所拥有的： br $>

我的（简化）类ClockInOut.cs

Hi!
I'm working on a time tracking system which I want to use in a MVC 5 app.
Here is what I have so far:

My (simplified) class ClockInOut.cs

public Guid Id { get; set; }
public DateTime ClockIn { get; set; }
public DateTime ClockOut { get; set; }
public TimeSpan Duration { get; set; }

现在在我看来，用户有两个按钮。时钟输入和时钟输出。

这些是控制器操作：

Now in my view the user has two buttons. Clock in and clock out.

These are the controller actions:

public ActionResult ClockIn()
{
    var model = new ZeitBuchungDto()
                {
                    Id = Guid.NewGuid(),
                    Kommen = DateTime.Now,
                    Gehen = new DateTime(9998,12,31,0,0,0),
                };

    var convertToEntity = Mapper.Map<ZeitBuchungDto, ZeitBuchung>(model);

    zeitContext.ZeitBuchung.Add(convertToEntity);
    zeitContext.SaveChanges();

    return Json(new { success = true }, JsonRequestBehavior.AllowGet);
}

public ActionResult ClockOut()
{
    using (var db = new ZeitContext())
          {
              db.ZeitBuchung.Attach(convertToEntity);
              convertToEntity.Gehen = DateTime.Now;
              convertToEntity.AktuellGebucht = false;
              convertToEntity.Gesamtdauer = convertToEntity.Gehen - zeitKommen;
              db.Entry(convertToEntity).Property(x => x.Gesamtdauer).IsModified = true;
              db.Entry(convertToEntity).Property(x => x.Gehen).IsModified = true;
              db.SaveChanges();
           }
    return Json(new { success = true }, JsonRequestBehavior.AllowGet);
}

现在接下来的是我不满意的地方：

Now what's coming next is the point with which I'm not satisfied:

private IEnumerable<TimeSpan> GetTotalTime()
{
    var totalTime = myContext.MyEntity.Select(m => m.Duration).AsEnumerable();

    return totalTime;
}

public ActionResult Index()
{
    IEnumerable<TimeSpan> time = GetTotalTime();
    var totalTime = time.Sum(s => s.Ticks);
    var convertedTime = TimeSpan.FromTicks(totalTime).ToString(@"hh\:mm");

    ViewBag.Hours = convertedTime;

    return View(model);
}

我的尝试：

实际上所有这些东西都有效，但我觉得这种转换是非常不准确的。

在我的测试中，我注意到有时我看到的数字没有加起来。可能只是一个四舍五入的问题，但我仍然是编程的新手，所以我无法真正判断。

我想要的是准确的视图。看看这张照片：

我把圆圈放在哪里，我认为这只是将其调整为1分钟 - 现在还不错。但是想象一下你有一整个月的数据，而且只需要很长的时间 - 在月底检查时间的人可能会感到困惑。

所以我问的理由 - 怜悯我的代码，它可能不是很好lol - 但无论如何，我怎么能得到不同时间的准确说明。

希望你有一些建议....

提前致谢:)

Paul

What I have tried:

Actually all this stuff works but I have a feeling this conversion is pretty inaccurate.

Throughout my tests I noticed that sometimes the numbers I see don't add up. Might be just a rounding issue but I'm still pretty new to programming so I can't really judge on that.

What I would like to have is an accurate view. Take a look at this pic:
http://fs5.directupload.net/images/170905/zhvrlb4j.png
Where I put the circle, I assume this just got rounded up to 1 minute - which isn't too bad right now. But imagine you have a whole month of data and it just rounds up to a good amount of minutes - the person checking the times at the end of the month might get confused.

So my reason for asking - have mercy with my code, it's probably not really good lol - but anyway, how would I get an accurate illustration of the various times.

Hope you have some suggestions....

Thanks in advance :)

Paul

lol

在这种情况下，计算时间的最准确方法是什么？

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