Compare two List objects for equality, ignoring order [duplicate]

Answer 1

This worked for me:
If you are comparing two lists of objects depend upon single entity like ID, and you want a third list which matches that condition, then you can do the following:

var list3 = List1.Where(n => !List2.select(n1 => n1.Id).Contains(n.Id));

Refer: MSDN - C# Compare Two lists of objects