.NET Barcode Control for RDLC Reports Tutorial

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using OnBarcode.Barcode.RDLC;
namespace OnBarcodeRDLCWinFormsDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            this.productTableAdapter1.Fill(this.dataSet1.Product);
            Linear linear = new Linear();
            linear.Type = BarcodeType.CODE128;
            linear.BarcodeWidth = 500;
            linear.BarcodeHeight = 100;
            foreach (DataSet1.ProductRow row in this.dataSet1.Product.Rows)
            {
                linear.Data = row.ProductID.ToString();
                linear.OutputFileFormat = FileFormat.PNG;
                row.Barcode = linear.drawBarcodeAsBytes();
            }
            this.reportViewer1.RefreshReport();
        }
    }
}

using Microsoft.Reporting.WinForms;
using OnBarcode.Barcode.RDLC;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace OnBarcodeRDLCWinFormsDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //  Prepare report data.
            DataTable dt = new DataTable();
            dt.Columns.Add("ID", typeof(String));
            dt.Columns.Add("Barcode", typeof(byte[]));

            String id1 = "000001";
            String id2 = "000002";

            //  Create data for the 1st row in the table.
            Linear linear = new Linear();
            linear.Type = BarcodeType.CODE128;
            linear.BarcodeWidth = 600;
            linear.BarcodeHeight = 100;
            linear.OutputFileFormat = FileFormat.PNG;

            linear.Data = id1;
            byte[] imgData = linear.drawBarcodeAsBytes();
            dt.Rows.Add(id1, imgData);

            //  Create data for the 2nd row in the table.
            linear.Data = id2;
            imgData = linear.drawBarcodeAsBytes();
            dt.Rows.Add(id2, imgData);

            //  Configure Report
            this.reportViewer1.LocalReport.ReportPath = "Report1.rdlc";
            this.reportViewer1.LocalReport.DataSources.Clear();
            this.reportViewer1.LocalReport.DataSources.Add(new ReportDataSource("DataSet1", dt));

            this.reportViewer1.RefreshReport();
        }
    }
}