Database Code
  Home arrow Database Code arrow Barcode database driven application
ASP Free Forums 
.NET  
ASP  
ASP Code  
ASP.NET  
ASP.NET Code  
BrainDump  
C#  
Code Examples  
Database  
Database Code  
IIS  
Microsoft Access  
MS SQL Server  
Silverlight  
Visual Basic.NET  
Windows Scripting  
Windows Security  
XML  
Mobile Linux 
App Generation ROI 
IBM® developerWorks 
ASP Web Hosting  
ASP.NET Web Hosting 
Windows Web Hosting
 
Weekly Newsletter
 
Developer Updates  
Free Website Content 
 RSS  Articles
 RSS  Forums
 RSS  All Feeds
Write For Us Get Paid 
Request Media Kit
Contact Us 
Site Map 
Privacy Policy 
Support 
 USERNAME
 
 PASSWORD
 
 
  >>> SIGN UP!  
  Lost Password? 
DATABASE CODE

Barcode database driven application
By: aspfree
  • Search For More Articles!
  • Disclaimer
  • Author Terms
  • Rating: 4 stars4 stars4 stars4 stars4 stars / 15
    2001-03-04

    Table of Contents:

    Rate this Article: Poor Best 
      ADD THIS ARTICLE TO:
      Del.ici.ous Digg
      Blink Simpy
      Google Spurl
      Y! MyWeb Furl
    Email Me Similar Content When Posted
    Add Developer Shed Article Feed To Your Site
    Email Article To Friend
    Print Version Of Article
    PDF Version Of Article
     
     
    ADVERTISEMENT


    My name is Pete Draigh. I work for a regional auditing company and do all of our software and data-driven web development using mostly SQL Server, ASP, and a little Access. This article is about a solution I worked out to dynamically generate a bar code based on the value of an ID field in a database. It would be useful in a situation where users need to enter information into a system, be presented with a summary 'this-is-what-you-entered' page that they can then print and can be tracked later with the barcode. Similar to what many shipping companies such as Fedex use when you use their program to generate an airbill. I'd welcome any feedback at pdraigh@businessstrategy.com.

    The problem was to translate a value such as '123456' into a barcode. We use the Code 39 barcode for several things we do at our company. I wanted to put that barcode on a web page so that the user could print out a web page containing that barcode and later, we could use that barcode in the indexing process in our imaging system. Most users have a Code 39 font installed on their system for other purposes, but I didn't want to rely on them having it. I wanted to generate it in the web page and have that be independent of the browser/client computer, etc.

    My solution was to create GIF files for each supported character in the the Code 39 set. I got a sample for each character and then I created each character and tested it with our scanner software to make sure it was interpreted correctly. Then to represent the database value as a barcode in my ASP page, I simply loop through each character in the field value with an <IMG SRC="..."> tag to replace the character with the character's bar code GIF. Simple, and doesn't require anything on the client machine.

    The code is a simple loop:

    Response.write "<IMG SRC=""asterisk.gif"">"
    'Code 39 barcodes require an asterisk as the start and stop characters

    For x = 1 to len(rst("field1"))
        response.write "<IMG SRC=""" & mid(rst("field1"),x,1) & ".gif"">"
    Next

    Response.write "<IMG SRC=""asterisk.gif"">"


    Make sure you have a GIF for each barcode and you modify the IMG tags for the correct directory, filename, etc. You can also change the WIDTH and HEIGHT attributes of your IMAGE tag to make the barcode display larger or smaller on your page. Not a real complex solution, but sometimes the simpler, the better.


    DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware.

    More Database Code Articles
    More By aspfree

     

    IBM® developerWorks developerWorks - FREE Tools!


    Build Forge Express demo: Enabling software delivery excellence for small and midsized businesses

    This demonstration gives you an overview of IBM® Rational® Build Forge Express Edition, a global offering that provides a framework to automate and execute software processes. Rational Build Forge provides a software assembly line that can support all of your tools, technologies, and platforms so you can achieve a repeatable, reliable, and traceable build and release process.
    FREE! Go There Now!


    IBM DB2 Deep Compression ROI Tool

    The IBM DB2 Deep Compression ROI tool is designed for DBA’s and IT management personnel to perform a clinical analysis of the cost savings gained from the Storage Optimization feature of DB2 9 for Linux, UNIX and Windows. The feature, also known as Deep Compression, compresses data that lies within a database by up to 80% at times.
    FREE! Go There Now!


    NEW! Addressing software-as-a-service challenges using Tivoli security and WebSphere solutions

    Building a software-as-a-service solution requires addressing a few key technical challenges. In this webcast, we'll focus on the role of IBM Tivoli Directory Server and WebSphere Portlet Factory in creating a Software as a Service solution. We will demonstrate how to use Tivoli Directory Server to prevent the user population of one tenant from accessing the virtual portal and portlet components of another tenant. We will also use the dynamic profile capability of WebSphere Portlet Factory to create multiple highly customized applications from one code base.
    FREE! Go There Now!


    NEW! Build Web services with transport-level security using Rational Application Developer V7, Part 1: Build Web services and Web services clients

    Build secure Web services with transport-level security using IBM Rational Application Developer V7 and IBM WebSphere Application Server V6.1. Follow this three-part series for step-by-step instructions about how to develop Web services and clients, configure HTTP basic authentication, and configure HTTP over SSL (HTTPS). This first part of the series walks you through building a Web service for a simple calculator application. You generate and test two different types of Web services clients: a Java Platform, Enterprise Edition (Java EE) client and a stand-alone Java client. You also handle user-defined exceptions in Web services.
    FREE! Go There Now!


    NEW! Download IBM Data Studio V1.1

    Visit IBM developerWorks to download the latest trial version of IBM Data Studio V1.1 at no cost. IBM Data Studio is a comprehensive data management solution that helps you effectively design, develop, deploy and manage your data, databases, and database applications throughout the data management life cycle utilizing a consistent and integrated user interface. Unlike other client-side data management solutions that focus on only one aspect of the application lifecycle or database administration, Data Studio complements the Rational Software Delivery platform, providing unparalleled flexibility for a heterogeneous data server environment across platforms.
    FREE! Go There Now!


    NEW! Download IBM Rational Developer for System z

    Download a free trial version of IBM Rational Developer for System z, software that can help you deliver core development capabilities; the power of Java Platform, Enterprise Edition (Java EE); and rapid application development support to diverse enterprise application development teams. With comprehensive development tools to help create, deploy and maintain traditional enterprise and composite applications, Rational Developer for System z enables developers with different technical backgrounds to easily participate in important technology projects.
    FREE! Go There Now!


    NEW! Download the free Web Application Security eKit

    Discover how IBM Rational AppScan Standard Edition can help you detext vulnerabilities in your web applications in the Web Application Security eKit. IBM Rational AppScan is a leading suite of automated web application security solutions that scan and test for common Web application vulnerabilities. The new Web Application Security eKit provides you with valuable resources, including white papers, demos, and additional information on the benefits of testing your Web applications.
    FREE! Go There Now!


    NEW! Hacking 101

    Join us for this web seminar to learn how you can defend your web applications from attack. Learn about the 3 most common web application attacks, including how they occur and what can be done to prevent them. We’ll also discuss manual versus automated approaches for scanning and identifying web application vulnerabilities and how IBM Rational AppScan, an automated vulnerability scanner, can help you automate more of what you are doing manually today.
    FREE! Go There Now!


    NEW! Integrating XML into Your Enterprise Using Data Federation

    XML has become a common way of storing business data as flat files and many data server vendors including IBM have provided ways to store this data within relational database systems. Increasingly collections of XML files are accessed like databases using an xQuery and other XML standard mechanisms. Businesses find the need to combine the traditional tabular structured data with XML formatted data. In this webcast, you’ll learn about IBM’s WebSphere Federation Server technology, which provides users with the ability to integrate these two data formats.
    FREE! Go There Now!


    NEW! Krugle, developerWorks, and code search

    Ken Krugler, co-founder of code search company Krugle, and Laura Merling, vice president of Marketing and Business Development for Krugle, join to talk about the ins and outs of code search and what it means as a new feature for developerWorks users.
    FREE! Go There Now!



    All FREE IBM® developerWorks Tools!

    DATABASE CODE ARTICLES

    - Deployment of the MobiLink Synchronization M...
    - MobiLink Synchronization Wizard in SQL Anywh...
    - Finding Matching Records in Data Access Pages
    - Using the AccessDataSource Control in VS 2005
    - A Closer Look at ADO.NET: The Command Object
    - A Closer Look at ADO.NET: The Connection Obj...
    - Using ADO to Communicate with the Database, ...
    - Code Snippets: Counting Records
    - Constraints In Microsoft SQL Server 2000
    - Multilingual entries into a DB and to be dis...
    - Getting A List of Tables From SQL Server
    - SQL Server Database Creator - .NET Version
    - ADO Recordset Paging
    - Two combos, one textbox example
    - Discussion & Listserv Module by Mike Eck...





    © 2003-2009 by Developer Shed. All rights reserved. DS Cluster 2 Hosted by Hostway
    Stay green...Green IT