How do you prevent IDisposable from spreading to all your classes?

Question

Start with these simple classes...

Let\'s say I have a simple set of classes like this:

class Bus
{
    Driver busDriver = new Driver();
}

class          


        

Answer 1

Interestingly if Driver is defined as above:

class Driver
{
    Shoe[] shoes = { new Shoe(), new Shoe() };
}

Then when Shoe is made IDisposable, FxCop (v1.36) does not complain that Driver should also be IDisposable.

However if it is defined like this:

class Driver
{
    Shoe leftShoe = new Shoe();
    Shoe rightShoe = new Shoe();
}

then it will complain.

I suspect that this is just a limitation of FxCop, rather than a solution, because in the first version the Shoe instances are still being created by the Driver and still need to be disposed somehow.