C#

kabutar wrote:

do i need to use delegates or is there any other easy way of doing it.....

Christian Graus wrote:

The unmanaged objects are released right away, that's how Dispose always works.

Christian Graus wrote:

The GC will remove the object, as all references have expired.

Christian Graus wrote:

At this point, Finalise is called, which should clean up the same stuff Dispose does, you call Dispose to have stuff cleared without waiting for GC.

lmoelleb wrote:

If you forgot to call Dispose it will still be called from the garbage collector when it gets arround to release the object.

MSDN says:

Do not assume that Dispose will be called. Unmanaged resources owned by a type should also be released in a Finalize method in the event that Dispose is not called.

<br />
class Whatever : IDisposable<br />
{<br />
  ~Whatever<br />
  {<br />
    // this is NOT calling Dispose as per MSDN instructions,<br />
    // but an overload of Dispose that could<br />
    // as well have been named something else (naming it<br />
    // Dispose(bool) is that standard though, so it would be confusing<br />
    // to deviate from it).<br />
    Dispose(false); <br />
  }<br />
<br />
  public void Dispose()<br />
  {<br />
    Dispose(true);<br />
  }<br />
<br />
  private void Dispose(bool disposing)<br />
  {<br />
    // TODO: Release any unmanaged references here (so no matter if<br />
    // it is a Dispose or finalizer call.<br />
    if (disposing)<br />
    {<br />
      // This is only executed when Dispose is called, not when called<br />
      // though the finalizer.<br />
<br />
      // TODO: Dispose referenced managed objects here if any of them<br />
      // implements IDisposable. Never ever try to release them from<br />
      // the finalizer call - they might already have been released.<br />
<br />
      // Tell the Garbage Collector it no longer need to finalize this, if<br />
      // this isn't done, the object will end up being promoted a generation<br />
      // before being released.<br />
      GC.SuppressFinalize(this)<br />
    }<br />
  }<br />
}<br />

lmoelleb wrote:

No, the GC will never call Dispose, hence the need for the finalizer in the first place.