Classes vs. Modules

[Zytan]

I've read the docs on this, but one thing was left unclear. It seems
as though a Module does not have to be fully qualified. Is this the
case? I have source that apparently shows this.

Are modules left-over from VB6, and not much used anymore? It seems
that it is better to require Imports or use fully qualified names for
functions in other classes/modules, but a Module doesn't require this,
cluttering the global namespace. It seems using a class with shared
functions/subs is better.

Any recommendations ?

Zytan

[lord.zoltar]

On Feb 9, 3:15 pm, "Zytan" <zytanlith...@y ahoo.comwrote:

I've read the docs on this, but one thing was left unclear. It seems
as though a Module does not have to be fully qualified. Is this the
case? I have source that apparently shows this.

Are modules left-over from VB6, and not much used anymore? It seems
that it is better to require Imports or use fully qualified names for
functions in other classes/modules, but a Module doesn't require this,
cluttering the global namespace. It seems using a class with shared
functions/subs is better.

Any recommendations ?

Zytan

I still sometimes use modules for global variables and functions... I
think it was mentioned a while ago in this group (search for it, I'm
not sure) that Modules actually get compiled into static classes with
shared static members and functions...

[Armin Zingler]

"Zytan" <zy**********@y ahoo.comschrieb

I've read the docs on this, but one thing was left unclear. It
seems as though a Module does not have to be fully qualified. Is
this the case? I have source that apparently shows this.

Are modules left-over from VB6, and not much used anymore? It seems
that it is better to require Imports or use fully qualified names
for functions in other classes/modules, but a Module doesn't require
this, cluttering the global namespace. It seems using a class with
shared functions/subs is better.

Any recommendations ?

It's been discussed about 1 mio times, so please search this group first.
http://groups.google.com/groups/sear...ject%3Amodule*
Armin

[Zytan]

I still sometimes use modules for global variables and functions... I

think it was mentioned a while ago in this group (search for it, I'm
not sure) that Modules actually get compiled into static classes with
shared static members and functions...

Ok. That's interesting.

I try to avoid global vars like the plague, as do most, so I cannot
see why anyone would still want to use this. If you're gonna have a
'global var', it seems better to at least be in a class, where you
confine it to a certain location.

Zytan

[Zytan]

It's been discussed about 1 mio times, so please search this group first.http://groups.google.com/groups/sear...3Amicrosoft.pu...

>
Armin

Will do. I'm surprised a generic google search didn't return these
results, it usually does at the bottom of the first page of results.
Maybe it's the personalized results stopping it.

Zytan

[Zytan]

Any recommendations ?

>From an MVP (Cor):

http://groups.google.com/group/micro...fa6556bc656471
"There is never a reason to use a module execpt if you have that
already in
your VB6 converted program."

Exactly what I thought. Good enough.

Zytan

[lord.zoltar]

On Feb 9, 4:17 pm, "Zytan" <zytanlith...@y ahoo.comwrote:

I still sometimes use modules for global variables and functions... I
think it was mentioned a while ago in this group (search for it, I'm
not sure) that Modules actually get compiled into static classes with
shared static members and functions...

Ok. That's interesting.

I try to avoid global vars like the plague, as do most, so I cannot
see why anyone would still want to use this. If you're gonna have a
'global var', it seems better to at least be in a class, where you
confine it to a certain location.

Zytan

I know... I don't like globals either, but they do creep up
occasionally... I rarely have need for more than one or two. I used
modules a bit more when porting an old VB6 project. It was just easier
to leave stuff in them as long as it compiled. those parts are slowly
being re-written.
I also like Modules for situations like the Math class. I never need
to create an instance of Math, I just need functions like sine,
cosine, and constants, like Pi.

[Herfried K. Wagner [MVP]]

"Zytan" <zy**********@y ahoo.comschrieb :

>Any recommendations ?

>>From an MVP (Cor):

http://groups.google.com/group/micro...fa6556bc656471
"There is never a reason to use a module execpt if you have that
already in
your VB6 converted program."

Exactly what I thought. Good enough.

Well, I have to disagree.

Personally, I do /not/ use modules to store variables and program state. I
use modules only in very few cases: The project's main entry point is
placed in a module 'Program'. In addition, common functions are placed in
modules if their use makes sense throughout the project, similar to
"Microsoft.Visu alBasic.dll" and its modules. In this case modules are used
to structure a huge set of functions, but make them easily accessible in
IntelliSense everywhere.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Scott M.]

I don't know if I agree with that. A module can be used as a starting point
for your application along with a Sub Main. This can be helpful in
directing the flow of the application startup.
"Zytan" <zy**********@y ahoo.comwrote in message
news:11******** **************@ l53g2000cwa.goo glegroups.com.. .

>Any recommendations ?

>>From an MVP (Cor):

http://groups.google.com/group/micro...fa6556bc656471
"There is never a reason to use a module execpt if you have that
already in
your VB6 converted program."

Exactly what I thought. Good enough.

Zytan

[Zytan]

I know... I don't like globals either, but they do creep up

occasionally... I rarely have need for more than one or two. I used
modules a bit more when porting an old VB6 project. It was just easier
to leave stuff in them as long as it compiled. those parts are slowly
being re-written.

Yeah, understood. I agree. For VB6, it's best to leave as is, until
you have time to rewrite. But, this isn't a good starting point to
judge how new code should be (and I don't think this is what you are
trying to say, so I think we agree).

I also like Modules for situations like the Math class. I never need
to create an instance of Math, I just need functions like sine,
cosine, and constants, like Pi.

Yes, exactly. This is precisely what I want. But... it appears you
can just call these function without requiring Math.Pi, but just by
saying Pi. I don't like this. (Maybe I am wrong about this? But,
that's what the docs imply and source code examples I've seen imply.)

Zytan