How do destructors work in C#

Question

As title says it. Can someone explain this to me

Answer 1

Usually they are not necessary as C# has a garbage collection. If you have to manage your resources a bit more carefully, you can implement IDispose for your class, that's called when the garbage collector runs (make sure, references are set to null). Or you can use ~ClassName() {}. That works like any other destructor (but forces your garbage collector to run, that may lead to heavy runtime impact).

Microsoft made an excellent technical blog about garbage collection. It's a must read for every C# developer.
https://docs.microsoft.com/de-de/dotnet/standard/garbage-collection/fundamentals#what-happens-during-a-garbage-collection