c# - Comparing two lists with LINQ, and retrieve the different items -

assume have following object foo , properties listed below:

class foo public string name public string property1 public string property2 

now let's instantiate 2 lists of foo: list<foo>()

the first list contains 2 foo objects:

new foo() =  {    name = "name",    property1 = "random value",    property1 = "random value" }  new foo() =  {    name = "name",    property1 = "random value",    property1 = "random value" } 

the second list contains 1 foo object:

new foo() =  {    name = "name",    property1 = "random value",    property1 = "random value" } 

is possible using linq compare , return new list<foo> contains differences between these 2 lists (or other list matter)? taking consideration item order , any property value not match considered difference.

this helpful primitive objects: compare 2 lists, item item, using linq not provide way return new list differences.

edit

@csharpie reopened... question looks poorly defined - i.e. expected result {1,2,3,4} , {1,3,4}? possibly op looking sort of diff..

@alexeilevenkov output should 2. or list of {1,2,3,4} , {1,3,2, 4} output should {3,2} since order (or values) of 3 , 2 have changed original list.

try using except linq method:

list<int> = new list<int>{ 1, 2, 5 }; list<int> b = new list<int>{ 2, 3}; var result = a.except(b).union(b.except(a)).tolist(); 

in set theory, (a-b)+(b-a) equivalent differences between 2 of them.