Question

I’ve always wondered, lets say you have two asp.net websites running in the same app pool.

Lets call them Website 1 and Website 2

Both of these websites reference some shared code, lets call it Awesome.dll

Lets say that Awesome.dll contains a class defined as below

public static class Foo
{
   public static string Bar { get; set; }
}

My question:

Do both websites share the same static class or do they have their own isolated copy? That is to say, if Website 1 makes a change to Foo.Bar, is that change reflected in website 2?

Answer 1

My understanding is that while the websites will be in the same App Pool, they’ll still be in their own App Domain. That means they can’t see each other’s objects, and each one will have it’s own instantiation of the static class.