mtreit Comments - Answer Overflow

mtreit

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Like a classic bug is this:

public struct Point
{
    public int X { get; set; }
    public int Y { get; set; }
}

public class Widget
{
    public Point Location { get; set; }
}

public struct Point
{
    public int X { get; set; }
    public int Y { get; set; }
}

public class Widget
{
    public Point Location { get; set; }
}

and then you have code like this:

var w = new Widget();
w.Location.X = 42;

var w = new Widget();
w.Location.X = 42;

...and it doesn't get "updated" because of copy semantics with value types.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Unless you have some struct copy thing happening.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

I think you are either doing something wrong or completely mis-diagnosing the issue because changing the value of a member of a reference type will absolutely update the instance being referred to 🙂

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Variable capture in a closure could be an issue, yeah.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Then the reference you are using is to change the value of the member must be pointing to a different instance.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

There is no "snapshot" behavior for reference types.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Unless I'm missing something.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

What you are describing only makes sense if it's a struct.

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

Is UdpConnection a struct?

55 replies

CC#

•Created by Adise on 4/6/2025 in #help

✅ Class instance reference

I read this multiple times and don't quite understand what you are saying the problem is.

55 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

I have no opinion on Unity but it uses an older non-modern version of .NET and C# and folks here who are familiar with it say don't try to learn Unity until you have a good grasp of C# itself.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

It's just terrible.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

Avoid the Yellow Book at all costs.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

I probably learned C# before you were born so I'm not too up to speed on the most recent books, but The C# Players Guide and Head First C# both have good reputations.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

And if you are starting out any recent book should be fine. It might not cover 100% of the latest features of the language but as a beginner you don't need those anyway.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

Do what works best for you.

44 replies

CC#

•Created by quarterwire on 3/31/2025 in #help

✅ LEARN C# in 2025

Everyone learns differently.

44 replies

CC#