Call or Not Call

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Jay - 21 Nov 2006 14:42 GMT

Is there a difference between using Call ProcName vs just using ProcName?
If not, is it considered proper to use Call when calling another proc?
Thanks.

Reply to this Message

Herfried K. Wagner [MVP] - 21 Nov 2006 14:49 GMT

"Jay" <someone@somewhere.com> schrieb:

> Is there a difference between using Call ProcName vs just using ProcName?

No.

> If not, is it considered proper to use Call when calling another proc?

In VB6 I always used 'Call', but in VB I omit it except in one scenario
where it is mandatory:

\\\
Call (New MainForm()).Show()
///

Signature

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

Reply to this Message

Robinson - 21 Nov 2006 15:03 GMT

> where it is mandatory:
>
> \\\
> Call (New MainForm()).Show()
> ///

Why is it mandatory here? What happens to the instance when the call drops
out of scope? (just curious ;).

Reply to this Message

Herfried K. Wagner [MVP] - 21 Nov 2006 15:20 GMT

"Robinson" <toomuchspamhaspassed@myinboxtoomuchtoooften.com> schrieb:

>> where it is mandatory:
>>
[quoted text clipped - 4 lines]
> Why is it mandatory here? What happens to the instance when the call
> drops out of scope? (just curious ;).

It stays alive because somewhere in the Windows Forms library a reference to
the form prevents the form from being released.

Signature

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

Reply to this Message

Phill W. - 22 Nov 2006 15:20 GMT

> Is there a difference between using Call ProcName vs just using
> ProcName?

(Double-check newsgroup ... dotnet ... OK)

No difference at all.

> is it considered proper to use Call when calling another proc?

I'd say "Ditch it"; it's just eye candy now.

If you're still looking after VB "Proper" code, though, I would strongly
recommend using Call there; it gets your code into better shape for when
you need to migrate it to the newer "versions" of Visual Basic.

HTH,
Phill W.

Reply to this Message

Call or Not Call

Free Magazines