Important Update
The coding instructions are formulated to help you to try-out the features without the requirement to write your own code. ByteScout Data Extraction Suite is the bundle that includes three SDK tools for data extraction from PDF, scans, images and from spreadsheets: PDF Extractor SDK, Data Extraction SDK, Barcode Reader SDK. It can read barcode with barcode reader sdk in ASP.NET VB.
The SDK samples given below describe how to quickly make your application do read barcode with barcode reader sdk in ASP.NET VB with the help of ByteScout Data Extraction Suite. Just copy and paste the code into your ASP.NET VB application’s code and follow the instructions. Want to see how it works with your data then code testing will allow the function to be tested and work properly.
You can download free trial version of ByteScout Data Extraction Suite from our website with this and other source code samples for ASP.NET VB.
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<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="SimpleWebTestVB._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Simple Web Barcode Reader Tester (VB)</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<div>
<br />
<asp:ListBox ID="ListBox1" runat="server"></asp:ListBox><br />
<br />
<asp:Image ID="Image1" runat="server" /> </div>
</div>
</div>
</form>
</body>
</html>
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'------------------------------------------------------------------------------
' <auto-generated>
' This code was generated by a tool.
' Runtime Version:2.0.50727.3053
'
' Changes to this file may cause incorrect behavior and will be lost if
' the code is regenerated.
' </auto-generated>
'------------------------------------------------------------------------------
Option Strict Off
Option Explicit On
'''<summary>
'''_Default class.
'''</summary>
'''<remarks>
'''Auto-generated class.
'''</remarks>
Partial Public Class _Default
'''<summary>
'''form1 control.
'''</summary>
'''<remarks>
'''Auto-generated field.
'''To modify move field declaration from designer file to code-behind file.
'''</remarks>
Protected WithEvents form1 As Global.System.Web.UI.HtmlControls.HtmlForm
'''<summary>
'''ListBox1 control.
'''</summary>
'''<remarks>
'''Auto-generated field.
'''To modify move field declaration from designer file to code-behind file.
'''</remarks>
Protected WithEvents ListBox1 As Global.System.Web.UI.WebControls.ListBox
'''<summary>
'''Image1 control.
'''</summary>
'''<remarks>
'''Auto-generated field.
'''To modify move field declaration from designer file to code-behind file.
'''</remarks>
Protected WithEvents Image1 As Global.System.Web.UI.WebControls.Image
End Class
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Imports Bytescout.BarCodeReader
Partial Public Class _Default
Inherits Page
' IF YOU SEE TEMPORARY FOLDER ACCESS ERRORS:
' Temporary folder access is required for web application when you use ByteScout SDK in it.
' If you are getting errors related to the access to temporary folder like "Access to the path 'C:\Windows\TEMP\... is denied" then you need to add permission for this temporary folder to make ByteScout SDK working on that machine and IIS configuration because ByteScout SDK requires access to temp folder to cache some of its data for more efficient work.
' SOLUTION:
' If your IIS Application Pool has "Load User Profile" option enabled the IIS provides access to user's temp folder. Check user's temporary folder
' If you are running Web Application under an impersonated account or IIS_IUSRS group, IIS may redirect all requests into separate temp folder like "c:\temp\".
' In this case
' - check the User or User Group your web application is running under
' - then add permissions for this User or User Group to read and write into that temp folder (c:\temp or c:\windows\temp\ folder)
' - restart your web application and try again
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Image1.ImageUrl = "BarcodePhoto.jpg"
Dim reader As New Reader()
' Limit search to 1D barcodes only (exclude 2D barcodes to speed up the search).
' Change to reader.BarcodeTypesToFind.SetAll() to scan for all supported 1D and 2D barcodes
' or select specific type, e.g. reader.BarcodeTypesToFind.PDF417 = True
reader.BarcodeTypesToFind.SetAll1D()
'reader.MediumTrustLevelCompatible = true ' uncomment this line to enable Medium Trust compatible mode (slows down the recognition process as direct image data access is disabled in Medium Trust mode)
reader.ReadFromFile(Server.MapPath("BarcodePhoto.jpg"))
For Each barcode As FoundBarcode In reader.FoundBarcodes
ListBox1.Items.Add([String].Format("{0} : {1}", barcode.Type, barcode.Value))
Next
End Sub
End Class
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<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings/>
<system.web>
<!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
Visual Basic options:
Set strict="true" to disallow all data type conversions
where data loss can occur.
Set explicit="true" to force declaration of all variables.
-->
<compilation debug="true" strict="false" explicit="true" />
<pages>
<namespaces>
<clear />
<add namespace="System" />
<add namespace="System.Collections" />
<add namespace="System.Collections.Specialized" />
<add namespace="System.Configuration" />
<add namespace="System.Text" />
<add namespace="System.Text.RegularExpressions" />
<add namespace="System.Web" />
<add namespace="System.Web.Caching" />
<add namespace="System.Web.SessionState" />
<add namespace="System.Web.Security" />
<add namespace="System.Web.Profile" />
<add namespace="System.Web.UI" />
<add namespace="System.Web.UI.WebControls" />
<add namespace="System.Web.UI.WebControls.WebParts" />
<add namespace="System.Web.UI.HtmlControls" />
</namespaces>
</pages>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows" />
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
</system.web>
</configuration>
60 Day Free Trial or Visit ByteScout Data Extraction Suite Home Page
Explore ByteScout Data Extraction Suite Documentation
Explore Samples
Sign Up for ByteScout Data Extraction Suite Online Training
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60 Day Free Trial or Visit ByteScout Data Extraction Suite Home Page
Explore ByteScout Data Extraction Suite Documentation
Explore Samples
Sign Up for ByteScout Data Extraction Suite Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
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