Why isn’t the static constructor from my base class called?

Lets say we have 2 classes:

public abstract class Foo
{
    static Foo()
    {
        print("4");
    }
}

public class Bar : Foo
{
    static Bar()
    {
        print("2");
    }

    static void DoSomething()
    {
        /*...*/
    }
}

We expected that after calling Bar.DoSomething() (assuming this is the first time we access the Bar class) the order of event will be:

  1. Foo’s static constructor (again, assuming first access) > print 4
  2. Bar’s static constructor > print 2
  3. Execution of DoSomething

At the bottom line we expect 42 to be printed. After testing, it seems that only 2 is being printed.

Reason :

The static constructor for a class executes at most once in a given application domain. The execution of a static constructor is triggered by the first of the following events to occur within an application domain:

  1. An instance of the class is created.
  2. Any of the static members of the class are referenced.

Because you are not referencing any of the members of the base class, the constructor is not being executed.

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Why isn’t the static constructor from my base class called?

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