Compare swapped two list of each value using linq in c# [duplicate]

Question

Here is my cases,

ListA "1", "2", "3"
ListB "2", "1", "3"

If ListA == ListB, => it should return true since ListA values are in ListB.

ListA "1", "2", "3"
ListB "1", "2", "3", "4"

=> it should return false since ListB of 4 is not in ListA.

Can anybody help on this?

What should happen if LISTA "1", "2", "3" and LISTB "2", "1", "3", "3"? Or are you worried about that case? — KSib
– KSib, Commented Apr 26, 2017 at 15:44
I think you're right @Sinatr. The solution I came up with is already on there using sequenceequal and orderby. — KSib
– KSib, Commented Apr 26, 2017 at 15:47
@KSib Actually it is invalid case since having duplicate values. Anyway it should return false since ListA and LisB length is not equal. — cgsabari
– cgsabari, Commented Apr 26, 2017 at 15:51
Thanks for the clarification. I think your answer is in the link @Sinatr likely posted — KSib
– KSib, Commented Apr 26, 2017 at 15:54

Nikhil Agrawal · Accepted Answer · 2017-04-26 15:41:05Z

3

You need to use Except and then Any

var result = !ListB.Except(ListA).Any();

answered Apr 26, 2017 at 15:41

Nikhil Agrawal

48.8k25 gold badges134 silver badges212 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

KSib Over a year ago

This will work assuming no duplicate values ever show up in ListB.

Nikhil Agrawal Over a year ago

@Ksib: Duplicate will also work fine. Say ListB has an extra 3, still result returns true.

KSib Over a year ago

It wasn't a question for you, I was clarifying for cgsabari that this is fine if he doesn't mind duplicates. If he does mind duplicates then this won't work. Actually, it looks like this won't work for his requirements as he commented just now

Valentin · Accepted Answer · 2017-04-26 15:42:16Z

2

If lists contain only unique values you can use HashSet and SetEquals method

new HashSet(listA).SetEquals(new HashSet(listB));

answered Apr 26, 2017 at 15:42

Valentin

5,4882 gold badges28 silver badges38 bronze badges

Collectives™ on Stack Overflow

Compare swapped two list of each value using linq in c# [duplicate]

2 Answers 2

3 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Linked

Related