[RESOLVED] !! About the new type of Single Language MSDN that I am making for Microsoft !!

[akhileshbc]

Gee sorry that I fell asleep, because of the members posting on my Thread!! This is the first night's sleep for about since Feburary '12!! I now usually sleep in the day time, not at night because of the time thing on this Forum...

What were you doing at night ?


http://imageshack.us/photo/my-images/861/draculan.png/

Partying ?
(just kidding)

[ThEiMp]

Working on the computer, either paper work, pesudo code, working offline and then eating dinner at 12:00pm, Perth time!!

[ThEiMp]

You can reach my free products, at the following link on my Forum Member's Signature. I hope that you enjoy the products, and then can you please post the feedback on this Thread. That would really be nice, if you could do so. But you have to say, as to which one you are emplying about...

[ThEiMp]

Please look further into this Thread, cause of there being a newer more up to date version of the Product...

[visualAd]

I know absolutely nothing about that so can't really comment. Let me see if I can clarify where I'm coming from a bit because I'm not sure whether we're arguing the same point or not. I'll probably get the syntax wrong so bear with me.

This is obviously wrong:-

'Program starts Here
On Error Resume Next
...
'Loads of lines of code

That's just turning error handling off. I imagine we're probaly in agreement on that though.

This isn't as wrong but I would argue is still bad practice:-

...
On Error Goto MyHandler
'Various bits of code I'm handling correctly
...
On Error Resume Next 'Skip any errors because I don't care if the files already closed
File.Close
On Error Goto MyHandler
'More bit of code I'm handling correctly.

I used to come across that alot in my VB6 days but I still think it's bad because you don't actually know that the error being thrown is that the file is already closed. The error could be something completely different and this will carry on regardless. I guess there may be some situations where a particular line of code can only throw one type of error and you're happy to ignore it, but even then you don't know the underlying implementation won't change at some point.

I would argue that this is correct:0

On Error goto MyGeneralHandler
...Various Lines of code being correctly handled
On Error goto myFileCloseHandler
File.Close
On Error goto MyGeneralHandler
... more lines of code being correctly handled

MyFileCloseHandler:
If Error.code = "File Already Closed" 'Or whatever the error code for that was
   Resume Next

MyGeneralHandler:
'Do whatever error handling you'd normally do here

Here you're making sure the error is the one you want to consume before you consume it. Having a separate handler may or may not be apropriate, depending on the situation, but the point is to check the error first and make sure it's the one you think it is.


I've seen that argued a lot and disagree I'm afraid. It means your just ignoring any error you weren't expecting... and they're the really dangerous ones. I guess you could check for any error after every line of code but that seems awefully innefficient to me.



The Shaggy v Funky Rhyme Battle
Played out 'fore the VBF cattle
The puns were displaced
by formed rhymes in their place
But I aint got a final line that'll...

...scan correctly


Turns out I'm not very good at limericks. And I don't really think the VBFers are cattle but, hey, you try coming up with a rhyme for battle just after you've eaten lunch.

In VBScript, On Error Resume Next is the only way to do error handling, there is no On Error Goto. I would agree though, I cannot think of a reason why you should use it aside from being lazy, I have used it when I don't care about the error e.g. deleting a temporary you never intend to use again within an error handler, I try not to use nested error handling in VB. But I can still think of reasons why that would be bad (like the program is not releasing the file handle and if the process is iterative or repeated often it might max out the number of file handlers a program can have).

[ThEiMp]

Yes, but then there are simple errors like some sort of lines, like: "Cannot find file," when loading the DialogBox inside my CustomDialogBox, of ActiveX Control Objects...

[honeybee]

I've seen that argued a lot and disagree I'm afraid. It means your just ignoring any error you weren't expecting... and they're the really dangerous ones. I guess you could check for any error after every line of code but that seems awefully innefficient to me.

In most cases you aren't really looking for several different types of errors to be thrown. So if I were doing a file I/O there would be just about two or three types of errors I have to handle. Thankfully the days are gone where before every memory allocation you had to watch for the available free memory. So theoretically it's still very much possible to use inline error handling. After all that's exactly what we do in SQL or when calling the APIs, so why should it be wrong in VB6?

The trouble is that not everyone is disciplined enough to do it diligently.

.

[ThEiMp]

hehe ,, We aren't so structured in VB6 COM. But then why should we be that way, for being so many years not being???

[ThEiMp]

Please look further into this Thread, so that you can then be able to Download the exactly the most up to date version of the Project Files...

[honeybee]

Is it possible - this is just a random thought, mind you! - to rewrite whatever you have written in one of the modern technology platforms, such as maybe Dotnet?

.

[jcis]

I'm sure Microsoft programming teams can't wait to get their hands on this.

[dilettante]

Is it possible - this is just a random thought, mind you! - to rewrite whatever you have written in one of the modern technology platforms, such as maybe Dotnet?

I agree. Sounds like you're truly ready to be a .Net programmer.

[ThEiMp]

Well they chop and change very quickly like getting up to C#, that was very unsounded like...

[Shaggy Hiker]

I can't parse that statement.

[Niya]

I can't parse that statement.

I got an exception:-

[techgnome]

LOL @ Niya - I they allowed points for Chit-Chat ... you certainly would get some from me.... that's..... just brilliant.

-tg

[Niya]

LOL @ Niya - I they allowed points for Chit-Chat ... you certainly would get some from me.... that's..... just brilliant.

-tg

Haha, Shaggy's comment reminded me of how TryParse would silently fail when it cannot convert. Before coming here, I've always used functions like CInt to convert which throws exceptions when a conversion cannot be made. That how I came up with that lol

[kleinma]

In VBScript, On Error Resume Next is the only way to do error handling, there is no On Error Goto. I would agree though, I cannot think of a reason why you should use it aside from being lazy, I have used it when I don't care about the error e.g. deleting a temporary you never intend to use again within an error handler, I try not to use nested error handling in VB. But I can still think of reasons why that would be bad (like the program is not releasing the file handle and if the process is iterative or repeated often it might max out the number of file handlers a program can have).

I somewhat recall On Error GoTo 0 in VBScript... all though all it did was disable error handling totally

[kleinma]

Haha, Shaggy's comment reminded me of how TryParse would silently fail when it cannot convert. Before coming here, I've always used functions like CInt to convert which throws exceptions when a conversion cannot be made. That how I came up with that lol

TryParse isn't supposed to throw exceptions. That is why it accepts the result variable ByRef as a parameter. So it can return True/False if the parse was successful or not. Why would you want it to throw an exception? That is what the regular Parse method is there for. In fact TryParse was added later on after Parse, for the exact reason of the want to try to parse something without having to setup try/catch error handling around it.

[Niya]

TryParse isn't supposed to throw exceptions. That is why it accepts the result variable ByRef as a parameter. So it can return True/False if the parse was successful or not. Why would you want it to throw an exception? That is what the regular Parse method is there for. In fact TryParse was added later on after Parse, for the exact reason of the want to try to parse something without having to setup try/catch error handling around it.

I know. I would always use other forms of validation before passing it to functions like CInt. For example I'd often wrap a conversion that is meant to convert a String to an Integer in an If...Then block that tests the String using IsNumeric before attempting to convert to avoid the exceptions.

[penagate]

I got an exception:-
http://i40.tinypic.com/20p7okh.png

[visualAd]

I somewhat recall On Error GoTo 0 in VBScript... all though all it did was disable error handling totally

I've seen that a few times, there is an assumption that it changes the error handler back to what you had before. I have also seen an On Error Goto xx and the label xx just is at the end of the routine with only an Exit Sub / Function.

I still use VB (I mean VBA) on a daily basis as MS Access and Excel seem to be the tools of choice for large financial institutions. They also favour using cowboys to build the tools then get expensive people like me in to fix the mess.

[FunkyDexter]

then get expensive people like me in to fix the mess

So that's where all our money went. Give it back, you.

[visualAd]

I don't get it, the company I work for does. They rake in about 1200% more than I get paid.

[Shaggy Hiker]

I agree with TG: I have never been tempted to rate a post in CC, but that one would be the first. That was really well done.

[ThEiMp]

hehe ,, That On Errror GoTo, was something that I took very lightly, in deed!!

[ThEiMp]

I don't get it, the company I work for does. They rake in about 1200% more than I get paid.

Well I make nothing for every Project that I work on. Also I don't get paid for my work. So then that kind of profit, is then considered a gold mine!!

[ThEiMp]

-- Please check further into this Thread, so that you are able to download the newer versions of the Project that I am working on!!

[visualAd]

Well I make nothing for every Project that I work on. Also I don't get paid for my work. So then that kind of profit, is then considered a gold mine!!

Well I have heard about PCI busians and their cacheless economy. I am not a fan of PCI bus though, the last time I went there it was really hot and datasaurus' kept taking bytes out of me.

[minitech]

well i have heard about pci busians and their cacheless economy. I am not a fan of pci bus though, the last time i went there it was really hot and datasaurus' kept taking bytes out of me.

+500

[ThEiMp]

Not sure what you guys are talking about. I only wrote that many years ago, as per the normal bus at the time was: PCI Bus and then not anymore, in fact of the matter...

[Nightwalker83]

@ thEiMp,

That horoscope image could be a bit smaller! On your website it is annoying to have to adjust your view because the part of the page with info on it is halfway down the page that image is way to big.

[ThEiMp]

You mean the Sun Signs on the main index.htm page, right???

[ThEiMp]

Please look further into this Thread, cause there being a newer version of the Product...

[dilettante]

So this "new Single Language" thing is about programming via devination?

[honeybee]

hehe ,, That On Errror GoTo, was something that I took very lightly, in deed!!

One more reason for us to not try your code for we may catch something and finally realize it was all wrong.

.

[ThEiMp]

Why not??? There isn't anything wrong. It's only Source Code, you can open it up in Notepad, therefore you can not catch anything from the Code. Also the Controls are genuine and that there are only two of the ActiveX Control Objects, that I have written they are, as follows: The CustomDialogBox and the PlusMinus Control. Please note that they have been included inside the QuickDirector Express Project Files ZIP. But the PlusMinus Control, has been embedded into the Project Files, and therefore you will then be able to review it after I have been able to release it in time. That is all I need to have this Project finished, and then posted on the Internet in this very Forum, really postive maybe there for the Source Code, at that...

[Nightwalker83]

You mean the Sun Signs on the main index.htm page, right???

What I see when I look at the main index page is a white rectangle then a scrollable section below it. The white rectangle had a advert on it (in my case it seems to be an ad for Pantene aqua Light).

[penagate]

What on earth is this all about?

[visualAd]

This should explain it