Caching objects

[Simon Fitzpatrick]

I've been having problems trying to cache the values of a class to another
variable (in order to re-create an Undo-Redo scenario without having to go
through each property in the class).

When I set the contents of one of classes to another, (even when passing
byval to a procedure) and then change the original class, the cached class
is also affected. Is there anyway to in effect duplicate the contents of
a class and change the original without affecting the other?

I've probably missed something elementary here.

Thanks in advance,

Simon Fitzpatrick

[D. Patrick Hoerter]

Simon,

You'll have to roll your own Clone method. There is no way to copy an
object in Visual Basic. Passing an object ByVal merely copies the reference,
not the object.

Regards,
D. Patrick Hoerter


Simon Fitzpatrick wrote in message <38fec375$1@news.devx.com>...
>
>I've been having problems trying to cache the values of a class to another
>variable (in order to re-create an Undo-Redo scenario without having to go
>through each property in the class).
>
>When I set the contents of one of classes to another, (even when passing
>byval to a procedure) and then change the original class, the cached class
>is also affected. Is there anyway to in effect duplicate the contents of
>a class and change the original without affecting the other?
>
>I've probably missed something elementary here.
>
>Thanks in advance,
>
>Simon Fitzpatrick