Forms :: Auto-Detect BarCode Scan Entry OR Manual Entry - Cash Register?

Sep 8, 2009

i am pulling together a cash register that will allow both bar code product entry and manual key entry.imagine if you have a tin of beans in front of you, in a small corner shop they would probably type "47" and then hit "Produce". Fairly straight forward as I have the button Produce to act upon my code and update my salestrans.mdb but,if you scan the bar code I want the same form to handle both 'real' actions, (i assume that keyboard emulation barcode scanner includes "ENTER" after providing 13 digits)....

Q. in perhaps a long winded way i want to know how to kick off an event based on the "ENTER" key being activiated by the barcode scanner)?i do not want to have to hit any buttons if i am scanning bar codes.

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Data-bound Dropdownlist That Permits Manual Entry Also?

Aug 16, 2011

I am not a .net programmer but I can write bits and pieces that I need, however, I have been having trouble working out the best way to achieve something for a website I'm altering.I basically need to have a drop down list which is bound to a certain SQL call (already in place) but I also need the ability to manually type into the drop down list for items that do not exist. These items do not need to be entered into the SQL (I can handle the additional data separately) but I cannot find a way to type inside a drop down list while it is bound to a datasource.Some entries in the datasource (SQL table) are used for one thing, but then a text string needs to be entered for optional entries which do not exist within this SQL table.

Does anyone know how I can achieve this or maybe another similar control can be used that offers this kind of functionality?**Update to be more clear:I need this at runtime. For instance, I do not need this to be within code I actually need the control to accept user input when someone is on the webpate.Imagine a shopping list and all the items are within the drop down list then the user wants to add another item to the shopping list so they just type it into the drop down box and submit the page and its value will be used instead of an existing item.

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What is the code for ignoring the case of an entry while checking to see if the entry is correct or not... (i.e. in a flashcard program... given definition, asks for the name) I don't want the case of a character to affect whether the answer is correct or not.

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Jan 15, 2011

I have this cash register program with separate forms for the items and the display form. The code works untill you press the button 2x. It says 5.5 + 5.5 = 11.5??? Can you fix this code?

CashReg.ListBox1.Items.Add("Item 1")
Dim cash As String
cash = (5.5)[code]....

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Communications :: Differentiating Bar Code Entry To Keyboard Entry?

Jul 10, 2009

I am trying to make a program with a bar code reader for the first time. I am programming with VB 2005. I want to differentiate a bar code entry to keyboard entry. My questions:

1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?

2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).

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the combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.

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Differentiating Bar Code Entry To Keyboard Entry?

Jul 11, 2009

I am trying to make a program with a bar code reader for the first time. I want to differentiate a bar code entry to keyboard entry. My questions: 1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?

2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).

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Aug 2, 2010

I am using Richard L. Grier's Enhanced Serial Port dll to read input from a serial port barcode scanner I notice that the datareceived event fires only once per barcode scan, but the delegate sub fires twice per barcode scan. Once for 1st half of Barcode , 2nd for 2nd part of barcode This makes it hard to capture the full barcode so it can be passed to routines in my vb.net 2008 windows application In Richard's example 'Test Enhanced Port' program he sends it to a textbox using .selectedtext and it works fine Richards Delegate code ......................

Public Delegate Sub DisplayData(ByVal Buffer As String)
'This delegate routine marshals receive data from the receive thread context DataReceived to the Windows Form STAThread context
Private Shared Sub Display(ByVal Buffer As String)

[code]....

I am trying to set a variable to the full barcode to pass to routines, instead of writing to a textbox but am not having any success

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I am a student and I am about to make a program that will use a barcode scanner well ofcourse to scan a barcode. My problem is i don't know what library to use and what certain things i need to do so that when i am going to scan a barcode it'll be something like show it on a textbox and pull something from the database. i've actually research some. i've seen mscomm1 (not so sure about that) and POS for .net (haven't fully understood its use) were those will help me develop my program?i have a metrologic ms9520 Voyager barcode scanner. and i am going to create a program for it in vb2005.

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My assignment this week is to create a simple cash register. The kicker here is that I have to have an input box pop up to accept the data. I know I need to use a Do Loop here, but I' not sure what the proper condition should be. Hitting cancel on the input box or inputting nothing ought to terminate the loop.

Private Sub btnCheckout_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheckout.Click
Static decPrice As Decimal
Static intCount As Integer
Static decSub As Decimal

[code]....

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Feb 9, 2010

I'm trying to convert an ancient cash register program to .net. Conquered everything else, but I can't pop open the cash register. Its connected to COM1, you are supposed to send a "trigger" text down COM1 that will cause the register to open.

Here is the .net code.
MsgBox("Opening Drawer")
Dim port As System.IO.Ports.SerialPort
port = New System.IO.Ports.SerialPort("Com1")
port.PortName = "COM1"
port.BaudRate = 9600
[Code] .....

I get msgboxes "Signal Sent", "Done Pop Drawer". It just won't pop. It's an MS-Cash Drawer (EP125KC). Definitely connected to COM1, definitely has power. Chr(65) is the old code used to pop drawer and it works:
Open drawerComPort For Output Access Write As #1
Print #1, Chr$(65); "A";
Close #1
The above code worked successfully. The root problem was caused by a reversed power cord (negative was on the wrong side).

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May 7, 2012

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The outcome should be like this example[code]...

It should open a input box asking for the amount of each purchase and loop until all purchases have been entered

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Feb 6, 2011

Im getting mathematical errors. the part that I'm having problems with is, first, it doesn't add the tax to total the correct way. It adds it correctly if I put a dollar(1.00) but when I type one hundred dollars (100.00) it doesn't add the tax correctly. I am trying to compute and display the tax on the new subtotal. Second, it is not adding the correct change to the label in dollars, quarters, dimes, nickels, and cents. Third my arithmatic is not adding correctly when it has to do with the change due back. . Finally, forth I am also trying to do the following:

* add the total for this item to the order sub total and display the new subtotal.

* I have 2 clear buttons, one clears item, the other clears order the clear order button shoule clear out the change due and bordered label and have the subtotal reset to $0.00. The clear item should just clear out the quantity, unit price, and item total textbox.

* When the user has entered the amount of money tendered by the customer and click calc order button, the program should use the amount tendered and the current order total to compute and display the change due to the customer.

* the change due should be displayed in currency format in the readonly label, and should be displayed in terms of the number of dollars and coins due in the bordered label. [code]

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Feb 17, 2009

I am writing a program that sims a cash register. Everything works fine except VB will not compute subtraction. If I put a replace - with + everything works. What could be the cause of this?

Here is part of the

'Convert input into number
isConverted = Double.TryParse(owedTextBox.Text, NumberStyles.Currency, NumberFormatInfo.CurrentInfo, owed)

[CODE]...

***********If owed is 10 and paid is 5, it returns 0, but if I change the - to either a + or *, it returns the expected value

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Jan 27, 2012

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Jan 9, 2012

I am trying to create a socket class in my project to send data to ecr (electronic cash register).Ecr comes with software that listens for commands on port 3535. Command are in forms of XML Files. It has only one catch, I must close the connection on socket, so the ecr would know when to process the command and respond. Since I only send one command at a time,I need the simplest solution I can get.

How it works:I create the socket and connect it to 192.168.1.67:3535 I start 

client.BeginReceive

Then I send the command with

client.BeginSend

 And I do a 

client.Disconnect(True)

so I can get response from ECR.And in 8 of 10 times it works just fine. The problem is this few times it doesn't work.At that time I cant receive anything because it reports that the client is not connected in ReceiveCallback but it still manages to send the data to ECR just fine. The bill comes out on the ECR, but I get no answer about what happened.

I call the class like this:

Dim dre As New HCPSocket
Result2 = dre.Otkucaj(Command1, "192.168.1.67")
Debug.Print(Result2)
dre = Nothing
 
End the class looks like this:

Imports System
Imports System.Net
Imports System.Net.Sockets

[code]....

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Oct 27, 2009

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I'd also need to print the packing slip to a network printer from the device. Is there any way to do this?

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I know how to catch the input from the scanner, but what can I do to send the data to the other program?

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I have the code below which checks if an input is a duplicate and update accordingly, if not I want to create a new Vouch002 entry

'Create XmlWriterSettings
Dim settings As XmlWriterSettings = New XmlWriterSettings()
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[Code].....

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Articlenr , Integer
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[code]....

I want to add all the records from table1 to table2. I want to do this 10 times if I execute the following statement: INSERT into Table2 SELECT * FROM Table1 ; Everything works perfectly. The two records are added to table2 But if I execute the stament a second time get the following message: Duplicate entry '1' for key 1 I now i must do something with "duplicate key update" in the Insert statement.

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[Code]...

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[code]....

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