LINQ get elements from one collection that don't belong to another
Question
我有一个List<MyObject> allObjects和List<MyObject> someObjects （所有对象someObjects属于allObjects了。我想从要素allObjects不属于someObjects ？我怎么能做到这一点的LINQ？
3 answers
solution1
9 ACCPTED 2013-01-28 09:42:16
It's as easy as allObjects.Except(someObjects)
However, you should be aware that this uses the default equality comparer under the covers to compare the values.
If you wish to use a custom IEqualityComparer<MyObject> , there's an overload that allows you to do just that.
solution2
1 2013-01-28 09:42:27
var exceptionList= allObjects.Except(someObjects);
solution3
0 2013-01-28 09:45:17
尝试这个
allObjects.Except(someObjects)
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