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hi guys?
I am making a POS - Point of sale System - project. I want to read from a barcode reader and match the barcode against a barcode already in the database. I'm really stumped on how to go about it. How can I save a barcode to the database and then match what is in the database to what has been read from the barcode reader.
Please help
Moseti
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A bar code represents a string of characters and numbers. So your bar code reader should scan the bar code and convert it into the string representation. This is the value you would save in the database. Once in string form it should be very easy to compare it with other items in the database.
Mike Lasseter
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Hello,
This is very simple. The input of scanning in a barcode is the same as the keyboard input.
If you want to input a barcode value, you just put the cursor in a text box, read in the barcode and the value will be there. Once you have it you can do what you like if it. input into a database, compare with another value etc.
Once the barcode scanner is connected to the computer, you don't have to do anything else.
Hope this help,
Steve
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How can I import data from a Foxpro database to an access databse using VB.Net Code
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In my software when I'm in a textbox(big and multilined), and press Ctrl+T a textbox(small box)
must appear beside the cursor(not the mouse pointer).
(I don't want a code for the entire screen just in the big textbox)
pls Help very urgent.
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Well it is quite bit intrique. I am still working on it but having hard time to display the textbox next to cursor inside the big textbox. Here is the code it displays the text box according to form's cursor (X and Y) coordinates. 
Public Class Form1
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar = Chr(65) Then 'Define CTRL-T instead of chr(65) "A"
Dim tbox As New TextBox
Dim tx As Int32 = Windows.Forms.Cursor.Position.X
Dim ty As Int32 = Windows.Forms.Cursor.Position.Y
Me.Controls.Add(tbox)
tbox.Location = tbox.PointToClient(New Point(tx, ty))
tbox.BringToFront()
End If
End Sub
End Class
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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The problem with this is that a Textbox cannot contain other controls, like another Textbox. You can have a Textbox appear OVER another Textbox, but that's about it.
Getting the cursor position inside the TextBox is identical to gett it for the form. You just ask the Textbox to convert the coordinates using its PointToClient method. Just replace Me with the name of your instance of the Textbox.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Dave Kreskowiak wrote: The problem with this is that a Textbox cannot contain other controls, like another Textbox. You can have a Textbox appear OVER another Textbox, but that's about it.
I've never had a problem with this. Am I missing something here? As far as I can tell a textbox can contain other controls.
**EDIT**
I see the child control doesn't scroll with the textbox like it would under a form or other such container. It just sits on top. Now I get it.
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TwoFaced wrote: It just sits on top. Now I get it.
 Most people expect it to scroll with the Text. Unfortunately, they don't understand that the child textbox isn't part of the text at all.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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No.. No.. I didn't want the small textbox to come in the big textbox at all, I just wanted the small textbox to come beside the cursor(I say again not the mouse pointer ) that is in the big textbox.
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The cursor is the mouse pointer. The "caret" is the little binking line in the textbox.
You can get the position of the caret using this:
Dim caretPosition As Point = TextBox1.GetPositionFromCharIndex(TextBox1.SelectionStart)
Dave Kreskowiak
Microsoft MVP - Visual Basic
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My mistake, But the code doesn't work.
(it says "GetPositionFromCharIndex" is not a member of System.Windows.Forms.TextBox")
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GetPositionFromCharIndex is in the .NET 2.0 Framework and above. This means that your using VB.NET 2003 (.NET Framework 1.1) There is no equivilent in .NET 1.1 and below.
.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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How do I minimuise my program into the system tray.
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kubben wrote: I wrote an article that minimizes the windows app to the tray and also using a notify icon. It is in .net 2.0. The part of the code that minimizes the form is pretty much the same.
http://www.codeproject.com/dotnet/notifyiconcontrol20.asp[^]
Hope that helps.
Ben
Thanks for your reply, it got me started in the right direction..
instead of Form1_Closing i used Form1_Move and works a.o.k.
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i wanna know the working of login window.
like if users ids an passwords are stored in back end.
how it check the user.
and if paricular user has signed in then its full information which is already stored in DB, shud displayed in next(preceeding) form.
thanks for any kind of help
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Hi,
I need to upload my files directly to my web server without using ftp access. I know my web server path as like http://localhost/Temp
I need to upload my files to this directory in VB.net windows form.
Any luck, thanks in advance.
Be simple and Be sample.
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Hi,
I have tried the system.net.webclient ,
Dim wc As New System.Net.WebClient
Dim responseArray As Byte()
responseArray = wc.UploadFile("http://localhost/UploadedFiles/vbhelper.bmp", "POST", "c:\vbhelper.bmp")
It gives error as "The remote server returned an error: (401) Unauthorized."
Any luck,
Thanks.
Be simple and Be sample.
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add this statment after dim statements and re try again
request.KeepAlive = False
But probably it would be necessary to disabled it on the web server also. 
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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ramskr wrote: "The remote server returned an error: (401) Unauthorized."
What do you think this error is telling you?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I have always found those error messages difficult to solve.
A big reason is because you have not set checked anonymous and integrated windows authication security on the security tab of the IIS for the default website.
Hope this help,
Steve
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steve,
I have checked anonymouse and integrated windows authentication security on the security tab of the IIS for the default website.
Even I am getting the same unauthorized (401) error returns.
Be simple and Be sample.
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This ought to be simple, but it's kicking me....
I want to test the result of a division operation and return True IFF the division results in a whole integer.
Example Code (that hasn't worked so far)
Ticks +=1
If Ticks \2 Then
Do this
End If
If Ticks /2 Then
Do This
End if
The problem is, if I use \, once the result is >1, it always evaluates True. If I use /, the value always evaluates true.
Perhaps this isn't the most efficient way to do it. I'm using a time that Ticks once per minute, and I want to do some things every minute, some every 2, some every 3, and so forth. I'm open to any suggestions!
Thanks for your help!
Best,
Scott
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