Visual Basic

21-Sep-12 8:54

And this means exactly what to me?

Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Please stand in front of my pistol, smile and wait for the flash - JSOP 2012

Re: vb 6.0 API

Joan M20-Sep-12 6:37

Joan M

20-Sep-12 6:37

You can always take a look at the VB.NET articles here in Green Alien | [Alien]

:

http://www.codeproject.com/search.aspx?q=vb.net[^]

Good luck!

[www.tamautomation.com] Robots, CNC and PLC machines for grinding and polishing.

vb 2008 methods

dcof18-Sep-12 8:28

dcof

18-Sep-12 8:28

0

In a visual basic 2008 console application, I need to split up some an extrmely large method into lgocial groups based upon the new logic I need to add. Thus I have the following questions:

1. If i keep the code the way it basically exists in a large method, how can I make the code go to the end of the method? Basically from my if statment certain code would happen and then I want to go to the end of the method.

2. From the place where I would do the if statement, I would break the large method into two methods. From this if statement, i would do the new code or setups the rest of the code into this new method using most of the existing logic. However when I setup this new method, how would I know what objects I need to pass to the new method?

Richard MacCutchan18-Sep-12 9:44

Richard MacCutchan

18-Sep-12 9:44

This problem is not language dependent and it is something we have all had to face at one time or another.

Bad idea, it means adding more if statements or even using a (shudder) goto.
Look at your design and break it into logical sections, each of which is self contained. You will easily see which objects are used within each section. That gives you your new methods.

One of these days I'm going to think of a really clever signature.

dcof19-Sep-12 4:04

dcof

19-Sep-12 4:04

is there code in vb.net 2008 to say to break out of a loop and go to the end of the method? if so waht is it?

I am a C# programmer and I need to make this change to a VB 2008 application.

Steven St. John19-Sep-12 4:19

Steven St. John

19-Sep-12 4:19

There are a number of Exit statements[^] that cause you to immediately leave the loop or routine when encountered in code.

Bytes overflowing despite modulo... [Solved]

Paul Conrad19-Sep-12 5:33

Paul Conrad

19-Sep-12 5:33

dcof wrote:
If i keep the code the way it basically exists in a large method, how can I make the code go to the end of the method?

Methods should really not be very large. You need to think about maintainability and readability. If you are lumping everything into one large method, you could start running the risk of having a difficult time debugging the method if something were to go wrong. It does not hurt to look into refactoring the code Smile | :)

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Saul Johnson16-Sep-12 13:28

Saul Johnson

16-Sep-12 13:28

Hello,

I've been thinking about this one for a long time. The following code always gives me an OverflowException when I run it:

Dim x As Byte = 200
Dim y As Byte = 100
Dim z As Byte = (x + y) Mod 256

I know the problem is the fact that I'm adding two byte values together, which is exceeding the limits of the data type in the intermediate step (x + y) before the modulo 256 is performed and the result assigned to z. I can fix it if I do this:

Dim x As Byte = 200
Dim y As Byte = 100
Dim z As Byte = (CInt(x) + CInt(y)) Mod 256

But that just seems like a lot of bother to achieve something that should be simple. One of my latest projects involved a lot of arithmetic like this and I can't help but wonder whether or not there's a better way of performing pure byte arithmetic with modulo operations without resorting to declaring larger integers all over the place or casting to and from them in code.

SixOfTheClock

A programming language is to a programmer what a fine hat is to one who is fond of fancy garden parties. Just don't try wearing any .NET language on your head. Some of them are sharp.

modified 17-Sep-12 5:21am.

Re: Bytes overflowing despite modulo...

Dave Kreskowiak16-Sep-12 17:46

Dave Kreskowiak

16-Sep-12 17:46

Nope. That's the simplest and fastest way to do it. Well, it'll be a tiny bit faster if you just used integers to begin with.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Bytes overflowing despite modulo...

Saul Johnson16-Sep-12 23:22

Saul Johnson

16-Sep-12 23:22

Well, couldn't have asked for it any clearer than that! Thank you. Smile | :)

A programming language is to a programmer what a fine hat is to one who is fond of fancy garden parties. Just don't try wearing any .NET language on your head. Some of them are sharp.

Updater Help

Bryan Muschter16-Sep-12 10:10

Bryan Muschter

16-Sep-12 10:10

I have created an updater, but I want a way to hide the exe being downloaded, is this possible?

Thanks,
Bryan

modified 16-Sep-12 22:49pm.

Saul Johnson16-Sep-12 13:43

Saul Johnson

16-Sep-12 13:43

Hi Bryan, just to let you know that nobody here is going to write the code and paste it here for you for two reasons:

1. We're here because we want to help people with specific questions about programming, not take on programming tasks on your behalf. You'll need to hire someone for that.

2. That kind of vagueness makes it impossible for anybody reading your question to know what you're talking about, let alone start to help you out. Do you mean hide the downloaded executable file on-disk? There's no way we can know for sure to give a useful answer unless you're more specific. Then and only then can we help you out.

I direct you to the "How to get an answer to your question" message posted by Chris Maunder. It's up at the top of the message board there. Good luck with your project. Smile | :)

A programming language is to a programmer what a fine hat is to one who is fond of fancy garden parties. Just don't try wearing any .NET language on your head. Some of them are sharp.

Bryan Muschter16-Sep-12 16:52

Bryan Muschter

16-Sep-12 16:52

Fixed it, Sorry about that.

Paul Conrad16-Sep-12 17:26

Paul Conrad

16-Sep-12 17:26

Bryan Muschter wrote:
I want a way to hide the exe being downloaded

Why? That sounds rather shady and malicious...

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

PrintPreviewControl InvalidatePreview wont triger

Bryan Muschter17-Sep-12 15:01

Bryan Muschter

17-Sep-12 15:01

Im making a program to check emails and I want it to download updates.

JR21216-Sep-12 8:40

JR212

16-Sep-12 8:40

Hi,

I have two forms. In form1 I use the code

frm2.PrintPreviewControl1.InvalidatePreview()

But it won't update the control

Why?

I use now, as a work around, a timer
in that timer I use

PrintPreviewControl1.InvalidatePreview()
timer1.enable = false

and in the calling control I use

timer1.enable = false

And that work fine but thats not the correct way I think Smile | :)

Jan

shape of number

memas6316-Sep-12 6:24

16-Sep-12 6:24

i want to know what is the code in visual basic 8 that will examine the shape of a number FROM DIGIT TO DIGIT
example
i have the number 1733
1-7 is an anscendig distance i name "U"
7-3 is descending distance i name "D"
3-3 is equal distance i name "Q"
so the shape of the number is "UDQ"
thank you
george

Wes Aday16-Sep-12 6:44

16-Sep-12 6:44

memas63 wrote:
what is the code

So you have not actually tried anything or read the "How to ask a question" message?

Sounds to me like you just need to write a couple of if statements. How is this a problem?

memas6316-Sep-12 7:00

16-Sep-12 7:00

i dont know how to start i am 63 years old
thank you

Wes Aday16-Sep-12 7:08

16-Sep-12 7:08

Reading the documentation helps. This[^] will tell you how to use an if statement.

memas6316-Sep-12 7:13

16-Sep-12 7:13

i read the example but i want to know how i use the if and then if is a number from one digit to the other
make me the start from the first digit to the second and i will try the rest
thank you

Wes Aday16-Sep-12 7:18

16-Sep-12 7:18

You cannot iterate over a number. You will have to convert the number to a string and then iterate over the string converting each character to a number and then comparing them

memas6316-Sep-12 7:19

16-Sep-12 7:19

please show me the startig code and i will understand better
thank you

Steven St. John16-Sep-12 16:03

Steven St. John

16-Sep-12 16:03

XML

Here's some code that might give you an idea, since it takes a string, iterates through character by character, and tests each character.  Obviously your test will be different, but it should get you on the right track.  Taken from <a href="http://msdn.microsoft.com/en-us/library/system.string.chars.aspx">MSDN</a>[<a href="http://msdn.microsoft.com/en-us/library/system.string.chars.aspx" target="_blank" title="New Window">^</a>].

<pre lang="vb">Console.Write("Type a string : ")
Dim myString As String = Console.ReadLine()
Dim i As Integer
For i = 0 To myString.Length - 1
   If Uri.IsHexDigit(myString.Chars(i)) Then
      Console.WriteLine("{0} is a hexadecimal digit.", myString.Chars(i))
   Else
      Console.WriteLine("{0} is not a hexadecimal digit.", myString.Chars(i))
   End If
Next
' The example produces output like the following:
'    Type a string : 3f5EaZ
'    3 is a hexadecimal digit.
'    f is a hexadecimal digit.
'    5 is a hexadecimal digit.
'    E is a hexadecimal digit.
'    a is a hexadecimal digit.
'    Z is not a hexadecimal digit.  </pre>

memas6317-Sep-12 0:42