How can I run a static initializer method in C# before the Main() method?

Question

Given a static class with an initializer method:

public static class Foo {     // Class members...      internal static init()     {         // Do some initialization...     } } 

How can I ensure the initializer is run before Main()?

The best I can think of is to add this to Foo:

private class Initializer {     private static bool isDone = false;     public Initializer()     {         if (!isDone)         {             init();             isDone = true;         }     } }  private static readonly Initializer initializer = new Initializer(); 

Will this work or are there some unforeseen caveats? And is there any better way of doing this?

Answer 1

Simply do the initialization inside a static constructor for Foo.

From the documentation:

A static constructor is called automatically to initialize the class before the first instance is created or any static members are referenced.

Answer 2

There are static constructors in C# that you can use.

public static class Foo {     // Class members...      static Foo(){         init();         // other stuff     }      internal static init()     {         // Do some initialization...     } }