Hi Frans Is there a good approach to compare 2 collections and get their differences? Thanks.

What is it exactly that you want to compare? The entities and all their fields or do you just want to check if the collections contain the same entities?

Yes, the entities and all their fields. Thanks.

netLearner wrote:

Yes, the entities and all their fields. Thanks.

If you have to compare all the fields as well, it requires 2 nested loops. If you just want to check if an entity is also in the other collection (PK check) you can use 1 loop and use entity.Equals(otherEntity)