If you are in the Method window you can rightclick and select Object List... to insert an object reference. You can use the Class Browser to output all of the code of all objects.
If you are looking for something else let us know it's not too hard to write code that will show you the object containership hierarchy.
>How do I can get the list of all object on a form including Page in pageframe and column in Grid in my program? Is there a command to do that?