ECMA-334 C# Language Specification

17.4.4: Field initialization

The initial value of a field, whether it be a static field or an instance field, is the default value (12.2) of the field's type. It is not possible to observe the value of a field before this default initialization has occurred, and a field is thus never "uninitialized". [Example: The example
using System;  
class Test  
{  
   static bool b;  
   int i;  
   static void Main() {  
      Test t = new Test();  
      Console.WriteLine("b = {0}, i = {1}", b, t.i);  
   }  
}  
produces the output
b = False, i = 0  
because b and i are both automatically initialized to default values. end example]