Sealed-Partial Class

Question

Can you make a partial class file for a class that is sealed?

Answer 1

The sealed keyword simply means that the class cannot be inherited. It has no impact on how the class' code is structured otherwise. The partial keyword simply allows a class to be split among several files.

In the sample below, class A compiles just fine. B does not compile because A is sealed and inheritance is not allowed.

public sealed partial class A   { private int x; }

public sealed partial class A   { private int y; }

public class B : A  {   }

Answer 2

It seemed to compile fine.

sealed partial class Class1
{
    public void MyMethod() { }
}

partial class Class1
{
    public void MyMethod2() { }
}