I'm beginner in this field and confuse with better method to use for text search. I'm intend to use it for specific length of string. For the text input, I'm using barcode. Also I need to fill a few field(text field) which I want the field automatically jump according to the text input(via the barcode). So, I'm figure 2 method and confused with it(hehe...):
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I need codes on how i could create a Library System using Barcode Reader. I have no idea at all on how I could create s system using barcode Reader
View 12 RepliesI am planning to buy a USB barcode reader. I don't want to use it as a keyboard wedge scanner.But before I do I wonder if it's possible to see whether the input comes from a barcode reader.I need a Windows Service that detects whether a barcode is scanned and depending on the text on the barcode starts another program.Is this possible and has anyone experience with this?
View 4 RepliesI 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.
I'm looking at creating an asset management system for all our electrical equipment, the equipment already have security labels with barcodes on them. What I am wanting is to be able to do is create a form where i can state some general information about the piece of equipment and then scan a barcode to register the equipments security number. so that if an employee needs to use that piece of equipment off site then I can just scan the barcode and register that the employee has taken the equipment.
My understanding is that the barcode reader is generally plug and play and acts as an input device? So what I would need to do is find a way to identify which input device is used, and if it is the reader find a way to assign a labels text to the value that has been read, rather that insert it into a textbox? I also want to display the actual barcode itself above the label, so I assume I would need to re-generate the barcode as an image and then display the image?
Im creating an EPOS system and nearing the end of the application.I need to connect my newly acquired barcode reader to the form in vb.net so that whenever I scan an item in the items ID number appears in the necessary textbox.After some research I have bought the relevant barcode reader making sure it supports the relevant barcodes including retail.I have plugged it into the computer through the usb port, it has installed automatically all of the relevant drivers, and below is the code Im using in vb.The below code is include for where the form loads up:Me.KeyPreview = True
View 4 RepliesI am wondering how to implement a barcode reader on vb.net 2008. I haven't started creating a program yet. I have only these simple questions
How to declare Barcode Reader on vb .net?
If I want to scan a product on the barcode reader how to catch the data that is being scanned?
I tried to configure my barcode reader to act as a keyboard wedge but it didn't work. (I'm using Metrologic Voyager MS9520) I figured out that the scanner still uses the serial port RS232. So i tried to use the MS Communication Control in VB 2005.
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how to connect barcode reader device into visual studio 2005? My device model is acanlogic cs-2030?
View 6 RepliesWhat are the steps that I have to follow while i connect the barcode reader in my desktop application.
View 6 RepliesI am trying to build a retail store application that uses a barcode reader. I need to know how to get the barcode data in my application and use it against my items database.
View 2 Replieshow to connect barcode reader device into visual studio 2005? My device model is acanlogic cs-2030?
View 2 RepliesScenero: Users inputs the barcode numbers into a textbox, hits the search button and is returned the description of that barcode.
Database:
Two fields: Barcode - barcodes in this field
Description - Description revalant to that barcode
Form:
Consists: Textbox(Input) - txtBarcode
Button(Process) -btnClick
Listbox(Outut) - lstDetails
Code:
Dim con As New OleDb.OleDbConnection
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
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This is the code i got to connect to the database itself. Then i got this code for the search part
Code:
SQL = "SELECT Description FROM Table1 where Barcode = '" & txtBarcode.text & "'"
What i need to know is:
1) Is the code for the search right.
2) How to get it so the description for that barcode is displayed in a listbox.
is there a method check the number of records in data reader? like the count of rows. ?
View 2 Replies[Code] my problem is if i search the class node with the name attribute of value "IT MAJEL 03", the xml reader reads through the first class which is "IT MAJEL 04" and read all of its child nodes(which i think is very awkward. why continue reading to its child nodes if the class name you're looking does not even match). is there another way to actually jump the reader of the xml node to the next xml node of the same level?
I mean if I search the class named "IT MAJEL 03", the reader should jump to the next same level element it does not match the query. It should skip reading the "IT Majel 04" child nodes. what I want to achieve here is I want to save nanoseconds of computing.
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)
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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
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.
View 1 Replies=I have textbox1, textbox2, command button1.
Textbox1 is the general console.
Textbox2 is the barcode field.
Commandbutton1 is the confirm button.
Scenario:
When scanner scaned a barcode, it will appear in the textbox2, when click on the commandbutton, it then add to the textbox1.
My problem is, when I scaned the second item, it can appear in the textbox2, but when I click on the commandbutton it then replace the previous item in the textbox1.
How can I make the textbox1 keeping all the record, and when everytime click on the commandbutton1, it appear in the next line in textbox1 rather than keep replacing the first data?
i want to ask that how i can open a search page in my vb.net webbrowser with a separate textbox in a tool bar separate from the url text box
View 2 RepliesI have developed an application in VB2008/MySql as database.I did serach record method but i need serach record using(Graterthan) >1000 and <5000(LessThan).Have a look at the normal search record code .
searchquery = "select date,PartNo,Customer,Requestor,Quotes,SO,WO,Vendor,Quantity,Turn,price,Lot,layers,x,y,Thick,Material ,MinLine,Minspace,MinDrill,ViaFill,impedence,plating,PacDesign,comments from quotes where"
searchquery = searchquery + " " + de.Key + "=" + "'" + de.Value.ToString() + "'"
I want to launch a application called Foxit Reader pdf Reader .I know System.Diagnostics.Process.Start(path) can do it but . Requirements are Foxit Reader should be installed on machine.Now if it is installed how to serarch for the path of its Executable to provide the parameter as I can not hardcode the path for different machines.
View 3 RepliesI have this as the structure
Public Structure TagInfo
Dim TagName as String
Dim hpt as Integer
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have the structures are populated and when the form opens up, I make a copy of the structure.on my form i have a textbox... that would have information matching the TagName(x).TagValue I am trying to figure out how i could find that value in my textbox quicker than doing a loop through the tagname structure.
I have a program which writes to a .log file as it is installing software. Some of the lines will contain either WARNING or FAILED.
What I would like, is a window in my program which will read the .log file and display the content into this window as it is being written too. Any lines which contain WARNING or FAILED in them are highlighted yellow/red.
I am having an issue with both Adobe Reader and FoxIt Reader when trying to print a PDF document. Both issues are different but a solution to either one will allow me to fix my issue.The issue I am having with Adobe Reader when trying to print using the following code is that it will not print it to the network printer I specify but just the default printer.
Dim AdobeReader As New Process
AdobeReader.StartInfo.CreateNoWindow = False
AdobeReader.StartInfo.Verb = "print"
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I have a delete method for a binary search tree. It only deletes the last two entered values. When trying to delete the root or anything to left of it it returns a null pointer exception.
PublicFunction Delete(ByVal key AsInteger) AsBoolean Dim current AsNode = root Dim parent AsNode = root Dim isLeftChild AsBoolean = True While (current.value <> key)
parent = current If (key < current.value) Then isLeftChild = True current = current.rightNode Else
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How do I use the Indexof Method to search for an Index a number? The number will be different on each line of the file. Each array has a name and a different zip code. I want to tell it to search for the first number in the line. Everything before that index will be first name, last name, and then zip code.
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I want to create a textbox which contents are validated every time the text in it changes. And an image is displayed beside the textbox if it is correct and another image shows up if its not correct. Pretty much like ajax.
Heres the method which I called from the class.
Public Sub read1()
cmd.CommandText = "SELECT * FROM testdb WHERE Name='" & name & "'"
Try
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Problem is, the method seems to be only called once. And the first image that was displayed stays the same even after inputting a data which does not exist in the database. I'm connecting this program to a mysql database using odbc.
I have a text file name list.txt which contains data like following;
AC-No. Name Time State New State Exception
100 ZULFIQUAR 09/04/2012 01:53 PM C/In Invalid
100 ZULFIQUAR 10/04/2012 01:39 PM C/In Invalid
100 ZULFIQUAR 11/04/2012 01:38 PM C/In Invalid
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Here's my code to add new lines to my text file:
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When the button is pressed the line is written to the file just fine, but if I restart my application, which calls Refresh_OtherLog() onLoad, it displays the lines of the text file as one line with the traditional square character depicting a character return. Why is it not putting that new lone as a new line in the listbox?
I have a VB2010 project where I need to read a tab delimited 50MB file using Microsoft.VisualBasic.FileIO.TextFieldParser. This technique works fine until the reader encounters a Unicode character upon which it inserts the little square thingy. The obvious choice is to change the encoding of the reader to Unicode from the default. This would probably work fine but for most files but this one is fairly large and I get the error TextFieldParser is unable to complete the read operation because maximum buffer size has been exceeded. By the way this file can be read completely without the Unicode option. Making the file smaller or breaking it up really isn't an option. Is is possible to increase the buffer size or is there another way to read this data that places the data in fields like the textparser and allows unicode characters?
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