ByteScout BarCode Generator SDK – ASP.NET – Generate Barcode In C# Backend

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ByteScout BarCode Generator SDK – ASP.NET – Generate Barcode In C# Backend

printable version:
ByteScout-Barcode-SDK-ASP-NET-Generate-Barcode-In-C-sharp-Backend.pdf

How to generate barcode in c# backend in ASP.NET using ByteScout Barcode SDK

Tutorial on how to generate barcode in c# backend in ASP.NET

The sample source code below will teach you how to generate barcode in c# backend in ASP.NET. ByteScout Barcode SDK: the robost SDK that generates high quality barcode images and pdf. Can generate all popular types of barcodes from QR Code, Code 39, Code 128, UPC, GS1, GS-128, PDF417, Datamatrix to more exotic barcode types. Fully customizable fonts, colors, print sizes. Includes special functions to ensure output quality, and tools for adding barcodes to new or existing pdf files and images. It can generate barcode in c# backend in ASP.NET.

ASP.NET code samples for ASP.NET developers help to speed up coding of your application when using ByteScout Barcode SDK. In order to implement the functionality, you should copy and paste this code for ASP.NET below into your code editor with your app, compile and run your application. Detailed tutorials and documentation are available along with installed ByteScout Barcode SDK if you’d like to dive deeper into the topic and the details of the API.

Trial version of ByteScout Barcode SDK is available for free. Source code samples are included to help you with your ASP.NET app.

On-demand (REST Web API) version:
Web API (on-demand version)

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60 Day Free Trial (on-premise)

Default.aspx

      <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    </div>
    </form>
</body>
</html>

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Default.aspx.cs

      using System;
using System.Data;
using System.Drawing.Imaging;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using Bytescout.BarCode;

public partial class _Default : System.Web.UI.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 void Page_Load(object sender, EventArgs e)
    {
        // Create new barcode
        Barcode barcode = new Barcode();

        // Set symbology
        barcode.Symbology = SymbologyType.Code39;
        // Set value
        barcode.Value = "Sample";

        // Clear http output
        Response.Clear();
        // Set the content type to PNG
        Response.ContentType = "image/png";
        // Add content type header
        Response.AddHeader("Content-Type", "image/png");
        // Set the content disposition
        Response.AddHeader("Content-Disposition", "inline;filename=result.png");

        // Save image to output stream
        barcode.SaveImage(Response.OutputStream, ImageFormat.Png);

        // End response
        Response.End();

    }
}