如何按dayofWeek c#对日期列表进行分组

Question

I would like to group by a List by a DayOfWeek (and time of this DayOfWeek). For example a week is not from Monday 00:00 until Sunday 24:00, but from Tuesday 12:00 until the next Tuesday 11:59. How could I group by this list?

internal class ChartData
{
   public DateTime Date { get; set; }
   public int Value { get; set; }
}

Answer 1

Use System.Linq GroupBy.

var list = new List<ChartData>();
var grouped = list.GroupBy(d => GetWeekNumber(d.Date));

You can implement GetWeekNumber(DateTime date) to provde a sequential number depending on which week the ChartData belongs to. The implementation depends on what exactly you want to achieve.

You need to provide more example data. But maybe it helps