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Nathan Minier wrote: Resharper.
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Nathan Minier wrote: Resharper.
Eric
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Presumably, in a world of reuse, I am the only one concerned when I hear “rewrite”, “redesign” or “refactor”. IT staff spend an inordinate amount of time reinventing the wheel over and over rather than moving on and accomplishing something new. I suppose it maintains the inflated “need” for IT workers.
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Or it could be that one obsolete language is architecturally incompatible with best practices in another. Crazy, I know.
"There are three kinds of lies: lies, damned lies and statistics."
- Benjamin Disraeli
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Unless it's less than 1000 lines of code, avoid auto-conversion software. I'd strongly recommend re-designing and then re-writing it in C#. The re-design is important because things are done way differently in modern .NET than it was during the VB6 days.
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There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Thanks, I will check it out. And yes I am actually re-writing a functional clone as you suggest. Sorry I did not make that clearer. The Program is around 400,000 lines of code.
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Yeah, you'd need to re-think the database schema, what database approach to use, do you keep it as desktop or do you roll out parts of it as web apps, host it on the cloud (AWS/Azure), use SOA and componentize the application structure, using Web API wrapper layers, designing for scalability, etc. Sounds like a really fun project.
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He isn't kidding. I would LOVE to get into a project like that!
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Converted database schema to SqlServer years ago. The VB6 Code runs fine on SQLServer2016.
Using CodeTrigger to create the data access layers. Like it a lot.
Old men need love and respect too...
(Did not believe this when I was 25...
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Exactly. Your post is the voice of experience talking.
Jeremy Falcon
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Clearly, they never worked for a government agency. 
On the other hand, you have different fingers. - Steven Wright
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In the 1970s, when structured languages such as Pascal were becoming widespread, the saying was that "You can do FORTRAN programming in any language!"
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Delete and rewrite?
Seriously - give that a thought: the logical flow is not the same in these two languages. I remember way back, when I was teaching myself C and how, after some time, I finally stopped writing FORTRAN programs with C syntax and started to write real C programs.
That goes for your conversion, too. Now, dropping that VB6, is your chance to finally do it right!
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Yes I am actually re-writing a functional clone as you suggest. Sorry I did not make that clearer. The Program is around 400,000 lines of code.
Can't delete, too many clients still successfully running their businesses with the VB6 code.
all out of aphorisms...
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No real problem: let them keep doing what they're doing.
Meanwhile, you write and debug the replacement. Switch over the willing.
Note that, down the line, you'll have a much better chance of maintaining your (new) code.
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Best Tool for me is ReSharper
Rules for the FOSW ![ ^]
if(this.signature != "")
{
MessageBox.Show("This is my signature: " + Environment.NewLine + signature);
}
else
{
MessageBox.Show("404-Signature not found");
}
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What might be useful, if it exists, is a tool that would let you embed C# in VB6 or vice versa allowing you to incrementally rebuild the app one module at a time. THis's dependent on the legacy apps structure not being too horrible; but at 400k lines and worked well enough to be kept alive this long I'm assuming that it did have more software engineering that the average craplication that earned VB6 so much hate over the years.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, weighing all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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I have been a firm believer in Rokford Lhotka's Business Objects....
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Used Rocky's framework for years. Good stuff.
Mike
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If all you're doing is converting it then what do you hope to gain? If you're not prepared to rewrite it just leave it as it is.
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By "Converting" I meant re-writing while keeping all of the same functionality.
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You clearly are looking to move to C#, but if you really want to shorten the learning curve, consider converting/rewriting to VB.NET. Once you get it to that point, there are tools that can convert to C#.
Why VB.NET first? The learning curve is much shorter and at least some VB6 code will work without too much fuss. (beware of the whole int/short/long issues)
If you want a direct conversion to VB.NET from VB6, I VB 2008 was the last IDE that had a migration tool.
"Go forth into the source" - Neal Morse
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I understand your logic and agree to some point. But as someone who started in VB5, then moved to VB6, then moved to VB.Net (using your logic!!) and then finally to C#, I really wished I would have gone straight to C#. There's a good argument that VB6 and VB.Net are somewhat similar in syntax, but there are enough differences that you ARE learning a new language. So you might as well move to whichever language you actually want to learn.
While using VB.Net, I used to wonder about all the people ranting about it. I understand the lazy variable declaration issue, but if you just set Option Explicit then you're good. However, now that I use C# I understand their viewpoint, although I don't fully share it. But I would choose C# hands-down over VB.Net. It's a much nicer and more concise/readable language. VB.Net is too "wordy".
Just my opinion from my experience. Still, kmoorevs makes a good point.
Mike
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