ASP.Net MVC如何生成日期列表

debugcn 发表于 Dev

马尔卡巴米

我正在尝试将日期列表生成到Asp.Net MVC5中的selectList中。我希望连续5周有一个星期开始的列表，但是在解决该问题时遇到了实际的问题。

理想情况下，我会在创建ActionMethod时需要它，因为我想将其用于该周记录的时间。

我一直在尝试使用下面的示例如何在星期初获取DateTime？并陷入困境。

我所拥有的是模型：

public class TimeSheet
{
    public int TimeSheetId { get; set; }
    public DateTime WeekCommencing { get; set; }
    public int MondayHours { get; set; }

    public int TuesdayHours { get; set; }

    public int WednesdayHours { get; set; }

    public int ThursdayHours { get; set; }

    public int FridayHours { get; set; }

    public int SaturdayHours { get; set; }

    public int SundayHours { get; set; }
    public bool CompletedTimeSheet { get; set; }
    public int PlanId { get; set; }

    public virtual ICollection<Plan> Plan { get; set; }
}

控制器：创建方法

  // GET: TimeSheets/Create
    public ActionResult Create()
    {
        DateTime today = DateTime.Today;
        if(today.DayOfWeek == DayOfWeek.Monday && today.Day <= 7)
            ViewBag
        return View();
    }

    // POST: TimeSheets/Create
    // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
    // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include = "TimeSheetId,WeekCommencing,MondayHours,TuesdayHours,WednesdayHours,ThursdayHours,FridayHours,SaturdayHours,SundayHours,CompletedTimeSheet,PlanId")] TimeSheet timeSheet)
    {
        if (ModelState.IsValid)
        {
            db.TimeSheets.Add(timeSheet);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        return View(timeSheet);
    }

请有人可以帮助我或提供建议

非常感谢马克

马丁·道森（Martin Dawson）

不确定“连续5周”到底是什么意思，所以我刚刚做了前5周。完全未经测试，所以如果有任何问题，然后说。

编辑：已编辑，因此仅在接下来的5个星期一进行。

由于您尚未发布尝试过的内容，因此对于您想要的内容有点模棱两可。

public class TimeSheet
{
    public DateTime DateSelected { get; set; }
}

public ActionResult Create()
{
    int weekCount = 5;
    List<DateTime> listDates = new List<DateTime>();

    for (int i = 0; i < (weekCount * 7); ++i) //Get next 5 weeks
    {
        //Adds only next 5 mondays to the list of dates
        if (DateTime.Today.AddDays(i).DayOfWeek == DayOfWeek.Monday)
                listDates.Add(DateTime.Today.AddDays(i));
    }

    ViewData["DateList"] = new SelectList(listDates);       

    return View();
}

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "TimeSheetId,WeekCommencing,MondayHours,TuesdayHours,WednesdayHours,ThursdayHours,FridayHours,SaturdayHours,SundayHours,CompletedTimeSheet,PlanId,DateSelected")] TimeSheet timeSheet)
{
    if (ModelState.IsValid)
    {
        db.TimeSheets.Add(timeSheet);
        db.SaveChanges();
        return RedirectToAction("Index");
    }

    return View(timeSheet);
}

@Html.DropDownListFor(x => x.DateSelected, (SelectList)ViewData["DateList"], new {@class = "form-control"})
@Html.ValidationMessageFor(x => x.DateSelected, "", new {@class = "text-danger"})

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