获取当月的星期一到星期六

在一个月内，我想知道当月的周一到周六，例如：2011 年 10 月有

3-oct-2011 to 8-oct-2011,
10-OCt-11 to 15-Oct-11, 
17-Oct-11 to 22-oct-2011,
24-Oct-2011 to 29-Oct-2011 

所有这些天的顺序 所有这些天，例如 2011 年 10 月 3 日、2011 年 10 月 4 日 ....11 月 29 日等都需要采用数组格式或数据表。

var today = DateTime.Today;
var daysInMonth = DateTime.DaysInMonth(today.Year, today.Month);

var dates = Enumerable.Range(1, daysInMonth)
                            .Select(n => new DateTime(today.Year, today.Month, n))
                            .Where(date => date.DayOfWeek != DayOfWeek.Sunday)
                            .ToArray();

这将查看当前月份的天数，为每个天数创建一个 DateTime 对象，然后仅将那些不是星期日的日期作为数组返回。

var today = DateTime.Today;
var daysInMonth = DateTime.DaysInMonth(today.Year, today.Month);

var dates = Enumerable.Range(1, daysInMonth)
                            .Select(n => new DateTime(today.Year, today.Month, n))
                            .Where(date => date.DayOfWeek != DayOfWeek.Sunday)
                            .SkipWhile(date => date.DayOfWeek != DayOfWeek.Monday)
                            .TakeWhile(date => date.DayOfWeek != DayOfWeek.Monday || (date.DayOfWeek == DayOfWeek.Monday && daysInMonth - date.Day > 7))
                            .ToArray();

这将执行相同的操作，除了删除任何不在当月的星期一 -> 星期六范围。 （一周从上个月开始，或在下个月结束）。

Edit:

这是一个 .NET 2 解决方案，它将执行与我之前发布的 LINQ 解决方案相同的操作。

        DateTime today = DateTime.Today;
        int daysInMonth = DateTime.DaysInMonth(today.Year, today.Month);

        List<DateTime> dates = new List<DateTime>();

        bool foundFirst = false;

        for (int n = 1; n <= daysInMonth; n++)
        {
            var date = new DateTime(today.Year, today.Month, n);

            // Skip untill we find the first Monday of the month.
            if (date.DayOfWeek != DayOfWeek.Monday && !foundFirst)
                continue;

            foundFirst = true;

            // Add all days except Sundays. 
            if (date.DayOfWeek != DayOfWeek.Sunday)
                dates.Add(date);

            int remainingDays = daysInMonth - n;

            // Verify that there are enough days left in this month to add all days upto the next Saturday.
            if (date.DayOfWeek == DayOfWeek.Saturday && remainingDays < 7)
                break;
        }

        DateTime[] dateArray = dates.ToArray();