Board index » delphi » Re: Moving to C#

2005-11-30 03:26:56 PM
delphi34
Jesper Hogstrom [Borland] writes:
welfare, Jesper. I do BDN work for John :-)
--
Cheers,
David Clegg
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or lose: it is how drunk you get." - Homer Simpson
 

You created a control on demand and nether disposed it?
Well, there is this urban legand that GC will call Dispose. It won't do
that! What might happen is, that the class has a VB-monk safety mechanism
to call Dispose in the finalizer. Since GC runs in it is own Thread this
requires the finalizer to be synchronized. I don't have to mention that
this kind of thing can get pretty slow.
If something is an IDisposable, the first thing to do is running Reflector
and check if it really doesn't contain any unmanaged stuff. Only if you
can verify this you don't have to dispose it explicitly.
This is IMHO part of .Net 101 and most .Net languages have an using
statement to make this pretty nice to read/write.
(btw , using would be a great addition to native Delphi, too ;-) )
using (YourDialogPanel dialog = new YourDialogPanel(referenceToYourForm))
{
if (dialog.ShowDialog() == DialogResult.OK)
DoSomething...
}
Where you would use ShowDialog to fake the behaviour of a "real" dialog.
My point was, that this was no case of some esoteric strangeness in GC,
but a completely deterministic MemLeak or the reason why finalizers
usually suck. ;-)
btw: It was said that GC in .Net 3.0 can handle unmanaged stuff inside
managed processes as well. Let's see if this is going to happen or even
desirable. ;)
--- posted by geoForum on delphi.newswhat.com
 

Dave Nottage [TeamB] writes:
You and Wayne Niddery, I remember he also defends such a %&#?&& coding
style :)
--
Ingvar Nilsen
www.ingvarius.com
 

Ingvar Nilsen writes:
if (x = y) then begin
DoSomeThing(x); end;
if (x == y) {
DoSomeThing(x); }
Both shorter, and more readable (all syntactic noise moved out to the
right).
--
Jan Nordén
Senior Software Architect
MDA products group
 

Iman L Crawford writes:
--
Andy Syms
Technosoft Systems Ltd
www.technosoft.co.uk
ICQ 136991871
 

Iman L Crawford writes:
primarily an embedded programmer :-( ) I format it as close to Pascal
as I can.
--
Andy Syms
Technosoft Systems Ltd
www.technosoft.co.uk
ICQ 136991871
 

Jan Nordén [Borland] <XXXX@XXXXX.COM>wrote in news:438db333$1
@newsgroups.borland.com:
--
Iman
 

Ingvar Nilsen <XXXX@XXXXX.COM>wrote in news:438d4c03$1
@newsgroups.borland.com:
--
Iman
 

Jan Nordén [Borland] writes:
I really hope this is a joke :)
--
Ingvar Nilsen
www.ingvarius.com
 

Iman L Crawford writes:
autoformat such a thing to
if (x == y)
{
DoSomeThing(x);
}
- luckily!
The line you save by having the begin/{ put on the first line will soon
lead to very difficult to read code when you have many lines and in them
nested conditions.
It is not for no reason MS has found out how it shall be.
What about:
procedure TForm1.Button1Click(Sender: TObject);begin
ShowMessage('hello');
end;
Looks stupid, right?
--
Ingvar Nilsen
www.ingvarius.com
 

Ingvar Nilsen <XXXX@XXXXX.COM>wrote in news:438dc165$1
@newsgroups.borland.com:
played around with C# it looked strange with the braces lining up like my
begin/ends. That being the norm in C# makes me a happy man. :)
--
Iman
 

It will only do that if you have formatting set up wrong in the Options
menu.
"Ingvar Nilsen" <XXXX@XXXXX.COM>writes

Don Strenczewilk writes:
menu :)
--
Ingvar Nilsen
www.ingvarius.com
 

Ingvar Nilsen writes:
still don't mind it but I have long since switched to putting begin on the
next line aligned with the end.
The one that is rife in the VCL code that drives me absolutely batty is:
if condition then Foo else
begin
Bar;
end;
No offense to the Borland developer that writes this, but - - Ugghhhh! STOP
IT!
--
Wayne Niddery - Logic Fundamentals, Inc. (www.logicfundamentals.com)
RADBooks: www.logicfundamentals.com/RADBooks.html
"A man is likely to mind his own business when it is worth minding,
when it is not, he takes his mind off his own meaningless affairs by
minding other people's business." - Eric Hoffer
 

Conclusion?
Ask "how to use MS tech" in a Delphi newsgroup. I am doing this all this
year and is a tactic advantage!
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