Sort DateTime List by Time

问题:

I have a datetime list and I would like to sort it using a lambda expression if possible.

My list:

6/19/1979 8:00:00 AM
5/5/1980 7:00:00 PM
10/20/1982 5:00:00 PM
1/4/1984 6:00:00 AM

The output should be in this order:

1/4/1984 6:00:00 AM 
6/19/1979 8:00:00 AM
10/20/1982 5:00:00 PM
5/5/1980 7:00:00 PM

回答1:

Simply, OrderBy the TimeOfDay:

var list = dateList.OrderBy(x => x.TimeOfDay).ToList(); 
// ToList added in response to comment.

回答2:

Above will work only if all the date are same, in case the date are also different you should do the following...

var sortedDates = dates.OrderByDescending(x => x);

or else Don't want to use, or don't know Linq then you can go for following..

static List SortAscending(List list)
{
list.Sort((a, b) => a.CompareTo(b));
return list;
}

static List SortDescending(List list)
{
list.Sort((a, b) => b.CompareTo(a));
return list;
}

回答3:

var result=dates.OrderBy(d=>d-d.Date);

回答4:

use this solution

list<DateTime> YourList=new  list<DateTime> ();
.
.
.
YourList.OrderByDescending(x=>x.Date).ThenByDescending(x=>x.TimeOfDay).ToList()   

回答5:

list.Sort((a, b) => a.CompareTo(b)); Where list is you List variable.