10 C# Mistakes I See Even Senior Developers Make

Are you making these C# mistakes without even realizing it? In this video, I cover **10 common C# mistakes that even experienced developers can make**, especially when working with ASP.NET Core, async programming, LINQ, Entity Framework, and APIs. We’ll look at: 00:00 Incorrect exception rethrowing 02:52 Using `async void` 04:20 .Result Deadlocks 05:15 IQueryable vs. IEnumerable: multiple database calls with `IQueryable` 07:20 `IEnumerable` worst case 08:19 Not using `AsNoTracking()` 09:15 Calling `ToList()` too early 09:57 Creating and disposing `HttpClient` repeatedly 11:15 Overcomplicated null checking 11:39 Improper string comparison methods These aren't beginner-only mistakes—they can lead to **performance problems, unnecessary database calls, poor error handling, and difficult-to-maintain code**. If you're a C# or .NET developer, this video will help you write cleaner, safer, and more efficient code. #CSharp #DotNet #Programming #ASPNetCore #Coding