Sorting a List of Custom Objects in C# - Inconsistent Results with Nullable Properties
I've been struggling with this for a few days now and could really use some help. I'm working through a tutorial and I'm sure I'm missing something obvious here, but I'm working on a personal project and I'm working on a sorting implementation for a list of custom objects in C#. My class looks like this: ```csharp public class Product { public string Name { get; set; } public double? Price { get; set; } public DateTime? ReleaseDate { get; set; } } ``` I need to sort a list of `Product` objects based on `Price` first, in ascending order, and if two products have the same price, I want to sort them by `ReleaseDate` in descending order. The issue arises when some `Price` and `ReleaseDate` values are null. Here's what I've tried: ```csharp var products = new List<Product> { new Product { Name = "Product A", Price = null, ReleaseDate = DateTime.Parse("2022-01-01") }, new Product { Name = "Product B", Price = 10.99, ReleaseDate = null }, new Product { Name = "Product C", Price = 10.99, ReleaseDate = DateTime.Parse("2023-01-01") }, new Product { Name = "Product D", Price = 5.49, ReleaseDate = DateTime.Parse("2022-05-01") } }; var sortedProducts = products.OrderBy(p => p.Price.HasValue ? p.Price.Value : double.MaxValue) .ThenByDescending(p => p.ReleaseDate.HasValue ? p.ReleaseDate.Value : DateTime.MinValue); ``` However, I'm getting unexpected results where products with null prices are appearing at the end, but I thought using `double.MaxValue` would push them to the end. Also, products with null release dates are sometimes not sorted as expected when their prices are the same. The output is not consistent in some edge cases, especially when handling null values. Is there a better way to handle this or any aspects I might be missing? I'm using .NET Core 3.1. Any help would be appreciated! For context: I'm using C# on Windows. I'm open to any suggestions. This issue appeared after updating to C# latest. I'm developing on Debian with C#. Am I approaching this the right way? I'm developing on Windows 11 with C#.