Question

如何获取给定月份的所有日期以及前几天和次日的列表，以填写一周，并选择周末和节假日。

我需要返回带有以下内容的XML文件：

    [XmlAttribute("month")]
    [Display(Name = "Month", Description = "")]
    public int Month { get; set; }

    /// <summary>
    /// Day
    /// </summary>
    [XmlAttribute("weekday")]
    [Display(Name = "Weekday", Description = "")]
    public int Weekay { get; set; }
    /// <summary>
    /// Weekend/ Holiday Day
    /// </summary>
    [XmlAttribute("weekendday")]
    [Display(Name = "Weekendday", Description = "")]
    public int Weekendday { get; set; }

就像Windows中的日历一样。我尝试了这个，但只得到了当前的月份

    var days = Enumerable.Range(1, DateTime.DaysInMonth(year, month))  // Days: 1, 2 ... 31 etc.
                     .Select(day => new CalendarItem(year, month, day))
                     .ToList();

Answer 1

使用此DateTime扩展名：

 static class DateExtensions
    {
        public static IEnumerable<DateTime> GetRange(this DateTime source, int days)
        {
            for (var current = 0; current < days; ++current)
            {
                yield return source.AddDays(current);
            };
        }

        public static DateTime NextDayOfWeek(this DateTime start, DayOfWeek dayOfWeek)
        {
            while (start.DayOfWeek != dayOfWeek)
                start = start.AddDays(-1);

            return start;
        }
    }

在我的课堂上，我用这个：

    var numberOfDays = 42;

    DateTime startDate = new DateTime(year, month, 1).NextDayOfWeek(DayOfWeek.Monday);
    var dates = startDate.GetRange(numberOfDays)
        .Select(date => new CalendarDaysItem(date.Month, date.Day))
                         .ToList();

定义const以获取数字天；获取星期几作为开始日期的星期几；

C＃-如何获取给定月份中前几天/后几天的天数以填充列表

1 个答案: