C# - Recognize Barcodes In A PDF File?

Nov 10, 2011

I have a PDF file with n pages, I need to split it to n files. On each page I have barcode, I need to recognize/read barcode. If I have two files with the same barcode I need to merge them.Can anyone recommend an .net component or exe or something else that will help me? It can be commercial.I have tried:itextsharp - only split and merge files dotimage/aspose/idautomation - only recognize barcodes and it very expensive a-pdf - not always recognize the barcode and not merge/split two files.

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I'm building an application in which a certain CSV schedule is read and searched for time and date values.

I want to read each cell in the CSV file with a streamreader and have VB determine if the contents of the cell represent a date (like 31-10-2011), a time (like 22:30) or random text data which is not formatted like a date or time.

How can I make VB recognize a string as either a date, a time or neither one, so I can use this string formatted as Date, Time or discard of it?

The contents of the CSV file will look something like this:

;Schedulename;text;text;31-10-2011;text;text;6-11-2011;text;;;text

Although the CSV file will never contain much data, the position of the date and time fields in a row may vary, so I cannot tell VB which cell to read as date/time. It has to recognize the value as date, time, or unusable text.

Dim CSVReadline As New System.IO.StreamReader(schedule.csv")
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I've made an interface called ApprovalEvent in a separate file with the namespace myproject... I've also made a class called PurchaseOrder... it's also in the same namespace, just in a separate file. Whenever I try to make PurchaseOrder implement ApprovalEvent it always says that ApprovalEvent is undefined...

How can I make the class recognize that the interface exists but is in a different file?[code]...

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Convertin And Printing Of Barcodes

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How can I generate barcodes in my vb.net application?

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Dec 1, 2011

I am trying to print a barcode I have successfully made the barcode in a label using a reference .dll file

Imports BarCode
TempLabel = New Label
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[Code]...

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I need to add barcode reading feature to my application. I donot know how to enable my application to read barcodes. I mean a scanner should read the barcode and having matched the article no. in database, info should be displayed on the screen.

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Generate And Print These Barcodes From Application

Jul 17, 2009

I am about to develop a software (VB .Net) that generates and reads barcodes. The backend db is sql server.

1. I have a major id and sub ids. For example I have major ID A, and subgroups A0, A1, An. Also I could have more detailed subgroups like A01, A02 and so on.

I need to generate and print these barcodes from my VB application.

2. The handheld scanner is used to read the generated barcodes and pull their data and show them on the screen.

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Generate Barcodes In A Word Document?

Oct 25, 2011

I have EAN-8 standard barcode information stored in the DB. I am trying to generate a report in MS Word Document format. The requirement is that I create barcode in the document using the stored info from DB. I am using VB.net (.NET Framework 2.0).

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Generate Barcodes In Program Applications?

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How I can generate barcodes in my vb.net applications?

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Forms - Generate Barcodes - Reading And Printing

Jul 17, 2009

I am about to develop a software (VB .Net) that generates and reads barcodes. The backend db is sql server. 1. I have a major id and sub ids. For example I have major ID A, and subgroups A0, A1, An. Also I could have more detailed subgroups like A01, A02 and so on. I need to generate and print these barcodes from my VB application. 2. The handheld scanner is used to read the generated barcodes and pull their data and show them on the screen.

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Allow User To Scan A Bunch Of Barcodes And Save Them In The Database?

Apr 28, 2010

I made a small application in VB.NET that allows user to scan a bunch of barcodes and save them in the database.Application works both for the regular computer browser and handheld pocket PC.Barcode can be either scanned into upc text field and automatically submitted to db or numbers can be manually added into upc text field and pressing Enter will add it to db.There are also two buttons on the page. One button "Clear" is to clear upc field in case user started a manual input and didn't like it. Second button "Exit" logs out a user.

User should just scan a barcode and it will be automatically added to db without pressing any Submit button so user can go through a lot of barcodes fast. In order to achieve this, upc text field has AutoPostBack property set to True.Then in the Page_Load event if len(upc.text)>0, then data from upc.text gets submitted to db and upc.text gets empty again.If len(upc.text) =0, nothing happens.So it works fine in case of a handheld. It scans and sets upc.text to empty string. So if I scan and press Exit button after that, I just exit without a problem.

But there is a bug if I input a upc number manually and then press an Exit button for some reason. Pressing a button causes the page to reload and number gets submitted to the database anyway though I just wanted to exit. In fact, if there is any data in the upc field, any action, pressing Enter, pressing the button, clicking with mouse on the screen, causes that data to be submitted to db in the page_load event.How can I avoid this situation if I still want items to be submitted automatically without pressing any button while scanning?

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Application That Reads In Scanned Barcodes Into A Database Table

Aug 14, 2009

I want to develop a small application that reads in scanned barcodes into a database table - Would a vb.net form based application that connects to the database be best approach? What I'm think is each time the user scans in the barcode - a message appears on the form saying the barcode that has been scanned.

1.Would I need to program anything within the program to check whether the barcode scanner is connected (or is this not necessary since it works like a keyboard device?)

2. How could I automate the scanning in without requiring any user intervention like a button which saves it to the database - so basically as soon as a barcode is scanned in - it is saved to the database and the next barcode can be scanned in etc.

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Cannot Recognize Enter Key

Dec 23, 2010

i am using this code below to compare two strings then count the no. of mistakes when text is added into textbox2[code]but when enter key is pressed the code doesn't recognize the enter even thought it is correct and counts it as a mistake.

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Jun 19, 2009

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Imports System.Windows.Forms
Public Class Form1
Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As

[code]......

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I am trying to teach myself visual studio 2010 using VB. However, I am having trouble with functions. I have created one that looks as the example code given in the text but I keep getting an error message.I include my code but whatever I have tried, like declaring Dims all over I can't get it to recognize that GCD is a function rather than a variable.

Partial Class Intergers2
Inherits System.Web.UI.Page
Protected Sub SubmitButton_Click(sender As Object, e As System.EventArgs) Handles SubmitButton.Click[code]......

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Jan 20, 2009

I create a simple form to call an process, is there anyway that the form can recognize that I have just ended that process

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Sep 1, 2009

How do I make my program know that time is passing and interact with it? Currently I'm trying to use a method like this:
Imports System.Globalization
Private Sub CurrentTime_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CurrentTime.Tick
Dim date_info As DateTimeFormatInfo = _
CultureInfo.CurrentCulture.DateTimeFormat()
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That sets the current time to ToolStripLabel1.Text it looks like: 10:25 PM. Then I made another timer, realizing I couldn't interact with Toolstriplabel1.text because the time contains " : and PM", and this timer does this:
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
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Basically it takes the value of toolstriplabel1 which would be "10" it gives a variable 1-12 in accordance with the current time. Then I have another timer that handles the main process, and in My.settings I have a variable:
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So I was going to use My.settings.12hourspassed as a variable such as My.settings.12hourspassed = My.settings.12hourspassed + 1 - whenever the time (textbox48.text) goes to 12.
Private Sub Timer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer.Tick
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I know that this method completely skips an hour and such.. accuracy isnt all that huge. Any way to tick off whenever 12 hours have passed? and if the program is turned off a way to compare the current date with the date the program turned off at to see how much time has passed while the program is off?

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Class A(Of T)
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i want to recognize the gps port and use in my program to send a command, i have the script to send the command through the serial port but now i net to put the com port manually and i want this automatic.

The code today:

Public Class Form1
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[Code]....

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I wanted to have the same objective as the Thread Starter here.

I have this code right now

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[code]....

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"The world is round and the place which may seem like the end may also be the beginning"

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