Issue with Using LINQ to Filter a List of Custom Objects in C# 10 - Unexpected Behavior
I've been struggling with this for a few days now and could really use some help. I've looked through the documentation and I'm still confused about Hey everyone, I'm running into an issue that's driving me crazy. I'm encountering unexpected behavior when using LINQ to filter a list of custom objects in C# 10. I have a list of `Person` objects, and I want to filter this list based on certain criteria. Here's what I've tried: ```csharp public class Person { public string Name { get; set; } public int Age { get; set; } } var people = new List<Person> { new Person { Name = "Alice", Age = 30 }, new Person { Name = "Bob", Age = 25 }, new Person { Name = "Charlie", Age = 35 } }; var adults = people.Where(p => p.Age >= 18).ToList(); ``` The filtering seems to work fine, but when I try to print the names of the filtered list using: ```csharp foreach (var adult in adults) { Console.WriteLine(adult.Name); } ``` I get the output as expected. However, if I modify the original `people` list after filtering and then print the `adults` list again, the result does not reflect these changes. For instance, if I add a new person to the `people` list, like this: ```csharp people.Add(new Person { Name = "David", Age = 22 }); ``` The `adults` list still doesn't include David. I was under the impression that LINQ queries return a dynamic view of the data. Is there something I'm missing here? I expected the `adults` list to update automatically when the `people` list changes, but it seems to hold a static snapshot instead. Is this the expected behavior in C# 10, or is there a better way to handle this? I also checked the documentation, and it states that LINQ queries are deferred execution, which is confusing in this context. Any insights would be appreciated! For context: I'm using C# on macOS. How would you solve this? What's the best practice here?