Re: Overflow checking - Visual Basic Discussion Boards

7-Apr-04 4:21

Hello...

I try writing a socket programming (server & client program) but now I am stuck because I had mix up code of UNIX & WINDOWS. Further more, i get lost totaly now as my code run properly. Suddenly i can't understand what am I writting.

Anybody can help me? Appreciated if you can provide me a complete sample of server / client program codes.

Please advise between TCP & UDP, which one is better for socket programming?

Thank you very much!

Regards,
libra

Re: Socket Programming

Dave Kreskowiak7-Apr-04 5:30

Dave Kreskowiak

7-Apr-04 5:30

programmingcodes@hotmail.com wrote:
Please advise between TCP & UDP, which one is better for socket programming?

Depends on the application. TCP is a connection based protocol that ensures all packets get to their destination and in the correct order, while UDP doesn't guarantee anything. If your doing file transfers use TCP. If your streaming audio/video use UDP.

Can't help you if you don't ask a specific question with the problem your having. And what do you mean by "I had mix up code of UNIX & WINDOWS"??????

RageInTheMachine9532

Re: Socket Programming

Anonymous7-Apr-04 6:01

Anonymous

7-Apr-04 6:01

Hello,

But, am I right to say that if someone would like to drop out from the connection or join the connection, it is better for me to select UDP?
However, I am writting by using on a single PC, all client & server are same pc. TCP should not be a problem, am I right?
From your experience, which one is more easier, TCP or UDP?

I use UNIX header file into my Windows. Hence, a lot problem come out. Please advise what .h file should I include. My code now using sys/types.h, sys/socket.h, netinet/in.h, arpa/inet.h & unistd.h. As I know, I should use Winsock.h to replace sys/socket.h. But, between Winsock & Winsock2, which more suitable?

Thank you.

Re: Socket Programming

Dave Kreskowiak7-Apr-04 6:12

Dave Kreskowiak

7-Apr-04 6:12

...here we go...

Anonymous wrote:
if someone would like to drop out from the connection or join the connection, it is better for me to select UDP?

Does not matter. The connection type is dictated by what your sending back and forth, not the number of connections...

Anonymous wrote:
I am writting by using on a single PC, all client & server are same pc. TCP should not be a problem, am I right?

Nope. It won't be a problem at all.

Anonymous wrote:
From your experience, which one is more easier, TCP or UDP?

They both work about the same. Neither one is easier than the other. Like I said, the choice is determined by WHAT your transferring, not how...

Anonymous wrote:
use UNIX header file into my Windows. Hence, a lot problem come out. Please advise what .h file should I include.

None! The .h header files are C++ headers, not Visual Basic.NET. VB doesn't know what to do with C++ syntax. You'll have to rewrite the header files with the stuff you need and convert the code from C++ to Visual Basic, by hand!

Besides, you don't need the header files anyway. All the socket programming API's have been wrapped in the System.Net.Sockets classes in the .NET Framework. The top of the .Sockets classes starts here[^]. You can search CodeProject for articles on 'sockets' as well as searching the rest of the web for examples.

RageInTheMachine9532

Help pls !!!!! --- reg GSM

itmpras7-Apr-04 3:44

itmpras

7-Apr-04 3:44

Hello friends!!
i am newbie in GSM programming , i don't know where to start.. if anybody is having sample vb code about sending
and receiving sms pls send me.. or atleast tell me where can i get information regarding that ..
thanks in advance .... Smile | :)

Re: Help pls !!!!! --- reg GSM

Dave Kreskowiak7-Apr-04 5:34

Dave Kreskowiak

7-Apr-04 5:34

Search the web for 'GSM' using Google[^]. There are TONS of references to GSM programming.

RageInTheMachine9532

Overflow checking

Sean Capstick7-Apr-04 3:42

Sean Capstick

7-Apr-04 3:42

Is there a way to stop overflow checking at runtime in VB.NET? I have one math calculation that must behave like another system, it could generate a number > 2 billion (<4) which then needs to go into a signed 32 bit integer. I don't want to disable it for the entire program though, just at one spot.

Thanks,
Sean

Re: Overflow checking

Dave Kreskowiak7-Apr-04 5:47

Dave Kreskowiak

7-Apr-04 5:47

Can't do that, it's all or nothing.

You can get around this "feature" your describing by doing you calclations in a Long type (64-bit) integer, then shifting the bits to the left by 32 bits then back to the right by 32 bits.

Dim longInt As Long = 3564530340
Dim shortInt As Integer = (longInt << 32) >> 32

Since your trying to simulate the performance of another system, you'll have to be very specific about it's behavior in overflow situations. This is because not all systems store numbers in the same format and not all systems share the same behavior in the same situation. Provide an example of the results to make sure you get the correct behavior in all circumstances.

RageInTheMachine9532

Re: Overflow checking

Sean Capstick7-Apr-04 10:03

Sean Capstick

7-Apr-04 10:03

Thanks, the shifting method gives me what I need.

Sean

Re: Overflow checking

Dave Kreskowiak8-Apr-04 2:25

Dave Kreskowiak

8-Apr-04 2:25

No problem!

RageInTheMachine9532

How to group multi project into single setup project

Member 7660846-Apr-04 21:39

Member 766084

6-Apr-04 21:39

I am having different module,i wanted to make a singel setup project fro this.how can i Implement this?doing so ,user can be select the module that he want to and can be unselect when he dont want to.

Tell me the method ..in order to make my deploying make easier....

Re: How to group multi project into single setup project

Sarvesvara (BVKS) Dasa7-Apr-04 18:34

Sarvesvara (BVKS) Dasa

7-Apr-04 18:34

This may not be the direct application for you to use. But you can give this a try... You can modify the configuration file and install it

http://www.codeproject.com/dotnet/dotNetInstaller.asp[^]

He who controls others may be powerful,
But he who has mastered himself is mightier still.

browse a dbase III (.dbf) file

omdino6-Apr-04 21:31

omdino

6-Apr-04 21:31

need help.
iam beginner in vb6, i try create a program using vb6 to browse and edit a dbf file. (using microsoft ado data control & microsoft datagrid control).
browsing ok. but i get an error while updating the cell.
error : "insufficient base table information for updating or refreshing"

dino

system name

jithen_dt6-Apr-04 20:02

jithen_dt

6-Apr-04 20:02

How can I find the system name in vb.net

Every thing is MAYA(Illusion)

Re: system name

Dave Kreskowiak7-Apr-04 1:00

Dave Kreskowiak

7-Apr-04 1:00

The Environment class holds that info:

Imports System
.
.
.
    Dim machineName As String = Environment.MachineName

RageInTheMachine9532

how to load word document from add-in

skoizumi291106-Apr-04 17:07

skoizumi29110

6-Apr-04 17:07

If i have the full path to the specific document( saying "mydocument.doc" how can i load the document from VB COM add-in

Creating help file

Sreepathi6-Apr-04 16:50

Sreepathi

6-Apr-04 16:50

Hi,

How to create, Edit and Load help file for each control. Or I would like to know how to write help file for my application for each control.

Any help will be appreciated.

Thanks,

Re: Creating help file

jithen_dt6-Apr-04 20:07

jithen_dt

6-Apr-04 20:07

You need not write saperate help files for each control,
what you can do is create 1 help file which has help info
about all controls in your app, and in the control property
provide different help keywords.

Every thing is MAYA

DataGrid Error - Need help

ibok236-Apr-04 15:20

ibok23

6-Apr-04 15:20

I have added a data grid. I am trying to change the default header of each column to another name. For example:

dgtsPayrollInfo.GridColumnStyles(0).HeaderText = "Employee ID"
        dgtsPayrollInfo.GridColumnStyles(0).Alignment = HorizontalAlignment.Center

I keep getting an error. I want my first column to have employee id as the header. Any Sugggestion

Thank you,

ibok23

Re: DataGrid Error - Need help

Dave Kreskowiak6-Apr-04 17:48

Dave Kreskowiak

6-Apr-04 17:48

ibok23 wrote:
I keep getting an error.

And that error would be ....?

RageInTheMachine9532

Re: DataGrid Error - Need help

ibok237-Apr-04 2:47

ibok23

7-Apr-04 2:47

I am trying to put a header on each of my columns in my data grid. I have the columns already there, but with a different name from when I made the data relations. For example on column one it has "fldEmployeeId". I just want "Employee ID". I am getting an error while trying to run it. It is telling me that

An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dllAdditional information: Index was out of range. Must be non-negative and less than the size of the collection.

The error is on the first line in this part of the code.

What am I doing wrong? I have a total of 6 columns. Any suggestions.

dgPayrollInfo.GridColumnStyles(0).HeaderText = "Employee ID"
        dgPayrollInfo.GridColumnStyles(0).Alignment = HorizontalAlignment.Center        
dgPayrollInfo.GridColumnStyles(1).HeaderText = "Payroll ID" 
       dgPayrollInfo.GridColumnStyles(1).Alignment = HorizontalAlignment.Center        
dgPayrollInfo.GridColumnStyles(2).HeaderText = "Pay Date" 
       dgPayrollInfo.GridColumnStyles(2).Alignment = HorizontalAlignment.Center       
 dgPayrollInfo.GridColumnStyles(3).HeaderText = "Gross Pay"  
      dgPayrollInfo.GridColumnStyles(3).Alignment = HorizontalAlignment.Right        
dgPayrollInfo.GridColumnStyles(4).HeaderText = "Withholding" 
       dgPayrollInfo.GridColumnStyles(4).Alignment = HorizontalAlignment.Right        
dgPayrollInfo.GridColumnStyles(5).HeaderText = "Net Pay" 
       dgPayrollInfo.GridColumnStyles(5).Alignment = HorizontalAlignment.Right

Thank you,

ibok23

Re: DataGrid Error - Need help

Dave Kreskowiak7-Apr-04 5:51

Dave Kreskowiak

7-Apr-04 5:51

You need to create the GridColumnStyle first, then added it to the GridColumStylesCollection. Just indexing a GridColumnStyleCollection, like your doing, will not create a new column.

    Dim newGridColumnStyle As New GridColumnStyle
    newGridColumnStyle.HeaderText = "Employee ID"
    newGridColumnStyle.Alignment = HorizontalAlignment.Center
 
    dgPayrollInfo.GridColumnStyles.Add( newGridColumStyle )
    .
    .
    .

RageInTheMachine9532

Re: DataGrid Error - Need help

Member 7660846-Apr-04 21:33

Member 766084

6-Apr-04 21:33

Dim GridTableStyle1 As New DataGridTableStyle()<br />
GridTableStyle1.MappingName = "Customer"<br />
'Customer is the name of the table in the dataset<br />
<br />
Dim GridColStyle1 As New DataGridTextBoxColumn()<br />
        With GridColStyle1<br />
            .HeaderText = "ID"<br />
            .MappingName = "CustID"<br />
<br />
        End With<br />
GridTableStyle1.GridColumnStyles.Add(GridColStyle1)<br />
<br />
MyDataGrid.TableStyles.Add(GridTableStyle1)

Deployment with dotnetfx.exe

nvmoss6-Apr-04 11:05

nvmoss

6-Apr-04 11:05

I am finishing up the deployment package for my first VB.NET application. Is there a way I can add the VB redistributable to my startup project so that it will automatically install before my application, if it isn't already on the target machine?

Thanks!

Re: Deployment with dotnetfx.exe

Dave Kreskowiak6-Apr-04 11:15

Dave Kreskowiak

6-Apr-04 11:15

No because your VB.NET app won't even launch without the .NET Framework already installed.

You'll have to install the framework during your app's installation. Search CodeProject and www.GotDotNet.com for articles on Bootstrapping Setup.

RageInTheMachine9532

Last Visit: 31-Dec-99 18:00 Last Update: 25-May-24 12:27

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