How Destroy Sorting Of A Sorted List

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Randomize a List<T> in C#

i have two lists like below :

List<strig> LS1 = new List<string>();
List<strig> LS1 = new List<string>();

LS1 have 5000 items inside.
LS2 is empty.
LS1 is a sorted list Ascending.
now i want to an shuffle list(created from LS1) and add that list to LS2!(totally shuffle)
what is the best way for doing that?

How do you unsort something? Do you mean randomize the order? What you're asking for doesn't make much sense. A list is always in some kind of sorted order -- order of insertion into the list, for example. Not sure what you mean. — Eli Gassert, Dec 14 '12 at 19:48
Define "unsorted". Technically, if you just swap the first and second elements, the list is now unsorted. — hatchet - done with SOverflow, Dec 14 '12 at 19:48
if you just swap the first and second elements, the list is now unsorted. -> it's not enough -> i want a totally shuffle list — SilverLight, Dec 14 '12 at 19:50
http://stackoverflow.com/questions/273313/randomize-a-listt-in-c-sharp — System Down, Dec 14 '12 at 19:52
Here you are : http://stackoverflow.com/questions/273313/randomize-a-listt-in-c-sharp — Larry, Dec 14 '12 at 19:53
Check this stackoverflow answer that uses Fischer-Yates shuffle: http://stackoverflow.com/questions/273313/randomize-a-listt-in-c-sharp — dutzu, Dec 14 '12 at 19:56

score 2 · Accepted Answer · edited May 23 '17 at 12:05

2

Random rnd = new Random();
var LS2 = LS1.OrderBy(_ => rnd.Next()).ToList();

But better use this Fisher-Yates shuffle

edited May 23 '17 at 12:05

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answered Dec 14 '12 at 19:53

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How Destroy Sorting Of A Sorted List

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