ioctlSocket in VB.NET - Visual Basic Discussion Boards

dial-up connecion properties (Urgent plz)

aamirsaddiq16-Jul-03 20:45

16-Jul-03 20:45

I want to show dial-up connection properties, broadband connection properties and new internet connection wizard using vb.net but I’m not getting it for this I think so RAS API use but I’m not getting it also.
i want to use it for any windows version

thnx in advance

Aamir

For DB experts only!

lee121216-Jul-03 4:11

lee1212

16-Jul-03 4:11

Hi This is not a regular problem but still any one who know the answer is bigger then life.

Let say we have an access database file (mdb) with one table that called tblRecID with 2 fields: "RecID" & "Info".
"RecID" is auto number + Primery key + Index.
"Info" is simple text.

If we saved 2 records to this table then the next "RecID" will be 3.
Now let's delete the 2 records and the table is now empty again.

How can you get the current "RecID" that need to be 2 (for now) by code (maybe DataTable object) ?

Any one?

Re: For DB experts only!

Richard Day22-Jul-03 5:54

Richard Day

22-Jul-03 5:54

lee1212 wrote:
How can you get the current "RecID" that need to be 2 (for now) by code (maybe DataTable object) ?

I'm with you right up until this sentence. Please can you clarify.

Re: For DB experts only!

pxw16-Aug-03 7:18

pxw

16-Aug-03 7:18

There is a SQL statement for setting "IDENTITY_INSERT" on or off. With it on, you can insert any legimate value you desire (it can't be a duplicate to what is there).

When you are done, turn it back off.

syntax
SET IDENTITY_INSERT [ database. [ owner. ] ] { table } { ON | OFF }

but you need either "owner" or "dba" the rights to the database.

talk to USB ports

Dev_Calz15-Jul-03 14:19

Dev_Calz

15-Jul-03 14:19

Hello, I am going to programming to a finger print scanner. I am unable to get the sdk for the device. Does anybody know where to start to program to a usb device.

I can talk to the com ports with out any problems.. But I can not figure out how to talk to the usb ports..

Thanks
Chris Calzaretta Confused | :confused:

Re: talk to USB ports

Dave Kreskowiak16-Jul-03 3:38

Dave Kreskowiak

16-Jul-03 3:38

First, do you have the drivers for the scanner? If not, your going to need the low-level docs on the scanner hardware so you can write your own device driver. That's just to TALK to the device. You'll probably find those docs in the SDK that you can't get.

Next, you'll need the documentation on the command protocol the scanner uses. You have to know the language the scanner speaks. Again, probably in the SDK you can't get. Without these docs, your not going to know how to get the device initialized, send commands, receive and interpret responses, perform properly formatted data transfers, or whatever else the device needs...

Next, there are no native classes to VB or VB.net that allow you to easily communicate over USB. You'll either have to search the web to try and find any or have to write something yourself.

These would be good places to start:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/buses/hh/buses/usbhdr_32nb.asp
http://www.lvr.com/usb.htm

RageInTheMachine9532

Any good up and coming conferences

Aaron Bartell15-Jul-03 6:52

Aaron Bartell

15-Jul-03 6:52

Hi all,

I am an RPG/Java iSeries programmer getting into VB.NET/ASP.NET programming and am looking for good conferences that I can attend to get up to speed fast.

Anybody have any suggestions?

Aaron Bartell

ioctlSocket in VB.NET

Abel15-Jul-03 4:21

Abel

15-Jul-03 4:21

Hello everybody.

I want to use the ioctlsocket winsock function to set non blocking mode to a socket in VB.NET.
I have to use this function because it seems there is no means to create a Net.sockets.socket object from a valid Win32 SOCKET handle (provided by a custom function librairy)

In my code, I alway Have SOCKET_ERROR after ioctlsocket call ... and lastError is set to 10022
Maybe my FIONBIO constant is not correct. Can someone help me ? tks

<br />
// C Computing of FIONBIO :<br />
//#define IOCPARM_MASK    0x7f            /*parameters must be < 128 bytes */<br />
//#define IOC_IN          0x80000000      /* copy in parameters */<br />
//#define _IOW(x,y,t)     (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))<br />
//#define FIONBIO     _IOW('f', 126, u_long) /* set/clear non-blocking i/o */<br />
<br />
    Private Shared ul As IntPtr = Marshal.AllocHGlobal(4)<br />
    Private Declare Function ioctlsocket Lib "ws2_32.dll" (ByVal sck As Long, ByVal cmd As Long, <[In](), Out()> ByVal argp As IntPtr) As Integer<br />
    Public Shared Sub SetNonBlockingMode(ByVal sck As Long)<br />
        'Dim ui As UInt32 = UInt32.Parse(1)<br />
        'Marshal.StructureToPtr(ui, ul, False)<br />
        Marshal.WriteInt32(ul, 0)<br />
        LastErrorValue = 0<br />
        Dim iRes As Long = ioctlsocket(sck, 2147772030, ul) 'Valeur de FIONBIO sur mon PC = 2147772030<br />
        If iRes = SOCKET_ERROR Then<br />
            LastErrorValue = Marshal.GetLastWin32Error()<br />
            Throw New Net.Sockets.SocketException(LastErrorValue)<br />
        End If<br />
    End Sub<br />

Store multiple XML files

^1.21 Gigawatts15-Jul-03 4:06

^1.21 Gigawatts

15-Jul-03 4:06

Hi there

I need to be able to store multiple XML files in a central location - like a database.

I'm aware that SQL Server has this option, but the people I'm designing this for aren't prepared to spend lots of money.

Any ideas for alternatives??

Many thanks
Dan
Poke tongue | ;-P

Re: Store multiple XML files

Ian Darling15-Jul-03 6:03

Ian Darling

15-Jul-03 6:03

MSDE?

MSDE is the SQL Server engine - check the licensing first (there are restrictions on where you can use it, IIRC), but you should be able to use it and it costs a lot less or nothing.

--
Ian Darling

Re: Store multiple XML files

^1.21 Gigawatts16-Jul-03 4:31

^1.21 Gigawatts

16-Jul-03 4:31

Thanks mate, will look at that!

table primary field name

bpchia14-Jul-03 18:18

bpchia

14-Jul-03 18:18

Is there anyway to get to know the table primary field name?

The information I have is table name and record id of this table, but to form a SQL statement to select those records, I need to know the table primary field. Is there anyway I can get it?

Re: table primary field name

Ian Darling15-Jul-03 2:10

Ian Darling

15-Jul-03 2:10

Take a look at ADOX (Active Data Object Extensions, IIRC)

--
Ian Darling

Sub Main

bensoncd14-Jul-03 14:17

bensoncd

14-Jul-03 14:17

Dear VB.NET Forum,

I have just started my first programming exercise in VB.NET. When I try to run the project an error code come up indicating that Sub Main is missing in my project. Kindly explain to me what this 'Sub Main' is for and how should I include it in my project.

Ben Confused | :confused:

Re: Sub Main

Nick Seng14-Jul-03 15:34

Nick Seng

14-Jul-03 15:34

Ok, first of all, what project are you running? Is it a Window application? Or is it a console Application? Where is your entry point into the app?

Nick Seng (the programmer formerly known as Notorious SMC)

God, I pity me! - Phoncible P. Bone

Re: Sub Main

bensoncd15-Jul-03 13:43

bensoncd

15-Jul-03 13:43

Hello Nick

I am running a Windows Application Project. I have not programmed in VB before, and what I have is the latest VB.NET software loaded on my machine. I am trying to teach myself VB.NET, but too bad the starting point seems to be quite difficult. Can I teach myself the basics of VB using VB.NET?

Re: Sub Main

Nick Seng15-Jul-03 15:19

Nick Seng

15-Jul-03 15:19

Don't worry about it. VB.Net is quite easy once you get the hang of it Smile | :)

OK, regarding your question. In VB.Net, there are 2 possible points of entry in an application, A windows form, or a Sub Main. To set either one, go to your Solution Explorer, Right-click on your Project and choose properties. Look for the "Startup Object" properties and it's corresponding Combobox, which will list any "Sub Main" and windows form in your application. Choose any one to have your program "start" from that point.

Nick Seng (the programmer formerly known as Notorious SMC)

God, I pity me! - Phoncible P. Bone

I just started VB.NET

Anonymous14-Jul-03 11:27

Anonymous

14-Jul-03 11:27

Hi there,
I just started programming in VB.NET. i am working on asp.net and using VB.NET. I have a log in screen and when the user clicks on it it should go to a results.aspx page. please suggest me the code that i need to write in the button click event.
thanks in advance

Re: I just started VB.NET

Nick Seng14-Jul-03 15:31

Nick Seng

14-Jul-03 15:31

Response.Redirect(page)

Nick Seng (the programmer formerly known as Notorious SMC)

God, I pity me! - Phoncible P. Bone

combobox

mhedrick14-Jul-03 6:33

mhedrick

14-Jul-03 6:33

Hello,
I am unable to get my combobox to load.
I have the user iner or scan a number into the textbox.
This calls a procedure and walla.....My CB should populate
but no. Can someone give me some suggestions from my code?
I get an object required error right here Mad | :mad:

Also, how can I get it to accept a scan instead of a user
hitting enter after entering the data?
Thank you very much.

Dim batchnumber As String
Dim GetBatchNO As Integer

strValue = Trim(UCase(txtbatchnum.Text))
Me.MousePointer = vbNormal
If strValue = 0 Then
MsgBox ("Invalid Batch Number!")
txtbatchnum_GotFocus
Me.MousePointer = vbNormal
Exit Sub
End If

txtbatchnum.Text = GetBatchNO
'ado.dbo_ShippingGetTnocwayFromBatchno GetBatchNO Mad | :mad:

batchnumber = Trim(ado.rsdbo_ShippingGetTnocwayFromBatchno!Tnocway) & ""
ado.rsdbo_ShippingGetTnocwayFromBatchno.Close

comboTnum.Clear
Do While Not ado.rsdbo_ShippingGetTnocwayFromBatchno.EOF
comboTnum.AddItem batchnumber
ado.rsdbo_ShippingGetTnocwayFromBatchno.MoveNext
Loop

End Sub

New to VB.NET & VB in general

newbie7314-Jul-03 5:46

newbie73

14-Jul-03 5:46

Hi all,

I have been in the IT industry for nearly 10 yrs now, and have no programming skills at all. Finally decided to bite the bullet and throw myself into it head first. However, I haven't tried programming since I was 18, some 12 years ago, and my current financial situation means purchasing books, etc. is out of the question. So, if there are any nice people out there who think they can help me, please get in contact.. Any help would be greatly appreciated, however little....

Cheers everyone.. Suspicious | :suss:

Matt

printing problems

Eng Hong Teo13-Jul-03 20:59

Eng Hong Teo

13-Jul-03 20:59

hi,
i am currently facing a title separation (Station 1) difficulties in printing on the same page.

req output:

Station: 1 (combobox value)
data
data
data

Station: 2 (combobox value)
data
data
data
data

how to capture the range value and separte into the above output?
can anybody help......i have been struggling for some time
thanks.

ON GOTO statement to vc++

shanila13-Jul-03 3:12

shanila

13-Jul-03 3:12

I got this BASIC code from an old book, I am converting this to c, could somebody tell me what is "On NTY GoTo 610, 620, 680, 690" function is? I know that is to go to line 610,620,680,690. but what are the conditions for that?
what about " !" in here?, In c if it is "!=" that is not equal to, but what about here? It canot be factorial number.

NTY = ITYPE(I): KP = 4 * (I - 1) + 1
600 On NTY GoTo 610, 620, 680, 690
610 R = ELEM(KP): GoTo 660
620 REY = ELEM(KP + 1) * Abs(Q(I)): If REY < 1! Then REY = 1!
630 If REY < 2000 ! Then GoTo 640 Else GoTo 650
640 R = ELEM(KP) * 64 ! / REY: GoTo 660
650 R = ELEM(KP) * 1.325 / (Log(ELEM(KP + 2) + 5.74 / REY ^ 0.9)) ^ 2
660 DH = DH + S(J) * R * Q(I) * Abs(Q(I)) ^ EN
670 HDQ=HDQ+EX*R*ABS(Q(I))^EN GOTO 710
680 DH = DH + S(J) * ELEM(KP): GoTo 710
690 DH = DH - S(J) * E(LEM(KP) + Q(I) * (ELEM(KP + 1) + Q(I) * (ELEM(KP + 2) + Q(I) * ELEM(KP + 3))))

thanks in advance
shanila

Re: ON GOTO statement to vc++

Hesham Amin13-Jul-03 8:52

Hesham Amin

13-Jul-03 8:52

as I recall
On NTY GoTo 610, 620, 680, 690 statement tests NTY and jumps to 610 if NTY=1 , 620 if NTY=2 etc.

in VB6 ! meens that the number is single.
but in GWBasic I used to see it if I write a huge number (the editor adds it)

How do I use Left, Right and Mid Functions?

MrGee12-Jul-03 8:49

MrGee

12-Jul-03 8:49

I am very new to Visual Basic 6, so forgive me if this is not the appropriate forum for this question.
I am building a form that has a text box that will hold hexadecimal data. I want to be able to take this data and display it seperate boxes of 2 characters. I know this can be done using Left(textName, 2) and also Mid(textName, 3, 2) but I can't seem to make it work.

Example: Text Box with this data: 22AB3F3202
That would yield text boxes with this: 22 AB 3F 32 02

I hope I made what I need clear and that someone can help me.
Thank you!

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