How to generate barcode in asp.net

In this article I am going to explain how to generate barcode in asp.net.

In the previous article I have explained Sql server query to get exact DOB inYears, months and days, Remove special characters (-, _,) from string in SQLSERVER,  How to create tags using Jqueryin asp.net, How to set color for ODD and EVEN rows in HTML Table using CSS and Form validation example using AngularJs with Bootstrap in MVC application.

Description:

Barcode provides asset and security tracking. To generate the barcode I am using ONbarcodeDLL.

Implementation:

Add a webform to project. Download the Onbacode DLL and add it to project.

HTML markup:

  <fieldset style="width:30%">

        <legend>Generate BAR Code Example</legend>

        <table>

        <tr><td>Enter Text/Value:</td><td><asp:TextBox ID="txtvalue" runat="server"></asp:TextBox></td></tr>       

        <tr><td></td><td><asp:Button ID="btnsubmit"

            runat="server" Text="Generate BAR Code"/></td></tr>

            <tr><td colspan="2"><asp:Image runat="server" ID="imgbarcode" /></td></tr>

        <tr><td></td><td></td></tr>

        </table>

        </fieldset>

Import the namespace

C# Code :

using System.Drawing;

using System.Drawing.Imaging;

using OnBarcode.Barcode;

VB.net code:

Imports OnBarcode.Barcode

Imports System.Drawing

Imports System.Drawing.Imaging

On button click write the below given code:

C# Code

protected void btnsubmit_Click(object sender, EventArgs e)

    {

        try

        {

            Linear barcode = new Linear();

            barcode.Type = BarcodeType.CODE39;

            barcode.Data = txtvalue.Text;

            barcode.drawBarcode("image/barcode.gif");

            imgbarcode.ImageUrl = "image/barcode.gif";

        }

        catch (Exception ex)

        {

        }

    }

VB.net code:

   Protected Sub btnsubmit_Click(sender As Object, e As EventArgs) Handles btnsubmit.Click

        Try

            Dim barcode As New Linear

            barcode.Type = BarcodeType.CODE39

            barcode.Data = txtvalue.Text

            barcode.drawBarcode("image/barcode.jpg")

            imgbarcode.ImageUrl = "image/barcode.jpg"

        Catch ex As Exception

        End Try

    End Sub

Build and run the project.