Are C# auto-implemented static properties thread-safe?

Question

I would like to know if C# automatically implemented properties, like public static T Prop { get; set; }, are thread-safe or not. Thanks!

Answer 1

Section 10.7.4 of the C# specification states:

When a property is specified as an automatically implemented property, a hidden backing field is automatically available for the property, and the accessors are implemented to read from and write to that backing field. The following example:

public class Point {   public int X { get; set; } // automatically implemented   public int Y { get; set; } // automatically implemented } 

is equivalent to the following declaration:

public class Point {   private int x;   private int y;   public int X { get { return x; } set { x = value; } }   public int Y { get { return y; } set { y = value; } } } 

That's what we promise, and that's what you get. The point of auto properties is to do the most basic, simple, cheap thing; if you want to do something fancier then you should write a "real" property.

Answer 2

It appears not. This is the decompilation with Reflector:

private static string Test {     [CompilerGenerated]     get     {         return <Test>k__BackingField;     }     [CompilerGenerated]     set     {         <Test>k__BackingField = value;     } }