Question

Some times ago I asked a question here “How to add an item in a collection using Linq and C#”

For Example I have same collection:

      List<Subscription> subscription = new List<Subscription>
       {
           new Subscription{Type = "Trial", Period = 30 },
           new Subscription{Type = "Free", Period = 90 },
           new Subscription{Type = "Paid", Period = 365 }
       };

Now I want to update an item of this list using C# code. Is it possible?

Answer 1

Your subscription list contains 3 references to 3 Subscription objects. If you update any one of the 3 subscription objects in that list (through whatever means) then the list will reference the updated element.

subscription.First(s => s.Period == 30).Trial = "new";

Will update the subscription object.. List won’t change but it references the same object which has been updated