Simulating Multiple Inheritance
From: blackdevil1979 (blackdevil1979_at_yahoo-dot-com.no-spam.invalid)
Date: 08/31/04
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Date: 31 Aug 2004 16:03:13 -0500
Hello,
> "In COM, multiple inheritance between interfaces is not supported.
However, by using the derived members capability, multiple
inheritance can be simulated."..MSDN Library
I have created an object which involve a datagrid. But when I create a
form and try to use the object, I found that some of the property
exists for a datagrid does not show in the
usercontrol in the form, for example
BackgroundColor Property.
So i thought of creating properties in my usercontrol, but someone
told me there is a better way because by generating properties in the
user control, u tend to duplicate.
And then i come accross this Multiple Inheritance. And since .Net does
not support multiple inheritance, the MSDN Suggest to use the derived
members capability.
As I read on, they mentioned something about
[u:e21e1feeb7]IInterfaceDef2::CreateAlias
[/u:e21e1feeb7], but i think they did not provide
sample or an example(or at least I cannot find them), thus I cannot
imagined how this IInterfaceDef2::CreateAlias supposed to look/be
like.. so is there someone who have experience in this
IInterfaceDef2::CreateAlias thing?
1) Can you please give me some clues or samples (is better) of this
IInterfaceDef2::CreateAlias. :)
2) Or if somene can tell me the proper way to do this(not necessarily
the IInterfaceDef2::CreateAlias)? So far the properties
that I have created only take effect after the FORM is load, not
during Design time like normal Datagrid Properties can
do.
Thanks.
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