C# 生成条形码图片 示例

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
//using gregn6Lib;

namespace BatchReport
{
    public partial class Form1 : Form
    {
       // private GridppReport Report = new GridppReport();
        private int fage = 1;
        public Form1()
        {
            InitializeComponent();

        //    Report.LoadFromFile(AppDomain.CurrentDomain.BaseDirectory "Batch.grf");

        }

        private void button1_Click(object sender, EventArgs e)
        {
            fage = 2;

            System.Drawing.Image image;
            int width =200, height = 80;
            string fileSavePath = AppDomain.CurrentDomain.BaseDirectory   "BarcodePattern.jpg";

            if (File.Exists(fileSavePath))
            {

               
              //  File.Delete(fileSavePath);
                GetBarcode(height, width, BarcodeLib.TYPE.CODE128, textBox1.Text, out image, fileSavePath);
            }

            else
            {
                GetBarcode(height, width, BarcodeLib.TYPE.CODE128, textBox1.Text, out image, fileSavePath);

            }
            FileStream filestream = new FileStream("BarcodePattern.jpg", FileMode.Open, FileAccess.Read);
            pictureBox1.Image = Image.FromStream(filestream);
            filestream.Close();
           // filestream.Dispose();
          
        }
        public static void GetBarcode(int height, int width, BarcodeLib.TYPE type, string code, out System.Drawing.Image image, string fileSaveUrl)
        {
            try
            {
                image = null;
                BarcodeLib.Barcode b = new BarcodeLib.Barcode();
                b.BackColor = System.Drawing.Color.White;//图片背景颜色  
                b.ForeColor = System.Drawing.Color.Black;//条码颜色  
                b.IncludeLabel = true;
                b.Alignment = BarcodeLib.AlignmentPositions.CENTER;
                b.LabelPosition = BarcodeLib.LabelPositions.BOTTOMCENTER;
                b.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;//图片格式  
                System.Drawing.Font font = new System.Drawing.Font("verdana", 10f);//字体设置  
                b.LabelFont = font;
                b.Height = height;//图片高度设置(px单位)  
                b.Width = width;//图片宽度设置(px单位)  

                image = b.Encode(type, code);//生成图片  
                image.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);

            }
            catch (Exception ex)
            {

                image = null;
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (fage == 2)
            {
             //   string xmlData = "<Bill><Item><Batch>"   textBox1.Text   "</Batch></Item></Bill>";
                //Report.LoadDataFromXML(xmlData);
              //  Report.PrintPreview(true);
            }
            else
            {
                MessageBox.Show("请先生成条形码后打印！");
            
            
            }

          //  Report.Print(true);

        }  
    }
}