Why disposed object doesn't throw exception on using it after disposing?

Question

Is it legal to call a method on disposed object? If yes, why?

In the following demo program, I\'ve a disposable class A (which implements IDisposa

Answer 1

Calling Dispose() doesn't set the object reference to null, and your custom disposable class doesn't contain any logic to throw an exception if its functions are accessed after Dispose() has been called so it is of course legal.

In the real world, Dispose() releases unmanaged resources and those resources will be unavailable thereafter, and/or the class author has it throw ObjectDisposedException if you try to use the object after calling Dispose(). Typically a class-level boolean would be set to true within the body of Dispose() and that value checked in the other members of the class before they do any work, with the exception being thrown if the bool is true.