Unexpected Results When Using LINQ with GroupBy on Complex Types in C#
I've been banging my head against this for hours. Quick question that's been bugging me - I'm running into an scenario when using LINQ's `GroupBy` method on a collection of custom objects. I have a class `Product` that contains properties such as `Id`, `Category`, and `Price`. I want to group these products by `Category` and then calculate the total price for each category. However, I'm getting unexpected results when I try to compute the total. Here's the implementation I have: ```csharp public class Product { public int Id { get; set; } public string Category { get; set; } public decimal Price { get; set; } } var products = new List<Product> { new Product { Id = 1, Category = "Electronics", Price = 100 }, new Product { Id = 2, Category = "Electronics", Price = 200 }, new Product { Id = 3, Category = "Clothing", Price = 50 } }; var groupedProducts = products.GroupBy(p => p.Category) .Select(g => new { Category = g.Key, TotalPrice = g.Sum(p => p.Price) }).ToList(); ``` When I run the code, I expect to see: - Electronics: Total Price = 300 - Clothing: Total Price = 50 Instead, I'm getting a result that shows the total prices as zero for each category. I've tried debugging and even added checks to ensure that `Price` is not null, but it still doesn't work. I've also verified that the `Price` values are set correctly before grouping. Is there something I'm missing in this LINQ query, or do I need to configure something else in my environment? I'm using .NET 6.0. Any insights would be greatly appreciated! This is part of a larger API I'm building. I'm developing on CentOS with C#. Thanks for any help you can provide! This is my first time working with C# LTS. Any ideas how to fix this?