小编use*_*698的帖子

简单问:如何让文本框显示值.item.LastName上的代码失败

@model List<Mvc2010_11_12.Models.Employee>
@{
    var grid = new WebGrid(source: Model,defaultSort: "FirstName",rowsPerPage: 3);
}

<div id="grid1">
    @grid.GetHtml(columns: grid.Columns(
        grid.Column("LastName"),
        grid.Column(format: (item) => Html.TextBox("LastName", item.LastName))
    ))
</div>

我需要返回给定日期的年份和星期.听起来很简单.但是要正确2012-01-01必须返回2011-52,因为2012年第1周从1月2日开始.

为了找到这一周,我使用:

GregorianCalendar calw = new GregorianCalendar(GregorianCalendarTypes.Localized);
return calw.GetWeekOfYear(DateTime.Parse("2012-01-01"), CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday).ToString();

这个回报52.(正确)

但是我怎么得到这一年？

编辑:

在这里的帮助:http://codebetter.com/petervanooijen/2005/09/26/iso-weeknumbers-of-a-date-ac-implementation/

这似乎有效:

 private int weekYear(DateTime fromDate)
    {
        GregorianCalendar cal = new GregorianCalendar(GregorianCalendarTypes.Localized);
        int week = weekNumber(fromDate);
        int month = cal.GetMonth(fromDate);
        int year = cal.GetYear(fromDate);

        //week starts after 31st december
        if (week > 50 && month == 1)
            year = year - 1;
        //week starts before 1st January
        if (week < 5 && month == 12)
            year = year + 1;

        return year;
    } …