C# 条码打印程序（一维码和二维码）
实现方案
1. 选择条码生成库
对于条码生成，推荐使用以下NuGet包：
- ZXing.Net – 开源条码处理库，支持多种一维码和二维码格式
- BarcodeLib – 专门用于一维码生成的库
2. 安装必要的NuGet包
Install-Package ZXing.Net
Install-Package BarcodeLib
3. 完整实现代码
using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
using ZXing;
using ZXing.QrCode;
using BarcodeLib; // 用于一维码生成
namespace BarcodePrinterApp
{
public partial class MainForm : Form
{
private Barcode barcode; // 一维码生成器
private PrintDocument printDocument;
private Image barcodeImage; // 要打印的条码图像
public MainForm()
{
InitializeComponent();
InitializeComponents();
}
private void InitializeComponents()
{
// 初始化条码生成器
barcode = new Barcode();
barcode.IncludeLabel = true; // 包含文本标签
// 初始化打印文档
printDocument = new PrintDocument();
printDocument.PrintPage += PrintDocument_PrintPage;
// 创建UI控件
this.Text = "条码打印程序";
this.Size = new Size(500, 400);
var lblText = new Label { Text = "条码内容:", Location = new Point(20, 20), Size = new Size(80, 20) };
var txtContent = new TextBox { Location = new Point(100, 20), Size = new Size(200, 20), Text = "1234567890" };
var lblType = new Label { Text = "条码类型:", Location = new Point(20, 50), Size = new Size(80, 20) };
var cmbType = new ComboBox { Location = new Point(100, 50), Size = new Size(200, 20) };
cmbType.Items.AddRange(new object[] { "一维码 - Code128", "一维码 - Code39", "二维码 - QR Code" });
cmbType.SelectedIndex = 0;
var btnGenerate = new Button { Text = "生成条码", Location = new Point(20, 80), Size = new Size(100, 30) };
var btnPrint = new Button { Text = "打印条码", Location = new Point(130, 80), Size = new Size(100, 30) };
var picBarcode = new PictureBox { Location = new Point(20, 120), Size = new Size(300, 200), BorderStyle = BorderStyle.FixedSingle };
// 添加事件处理
btnGenerate.Click += (s, e) =>
{
if (string.IsNullOrEmpty(txtContent.Text))
{
MessageBox.Show("请输入条码内容");
return;
}
try
{
if (cmbType.SelectedItem.ToString().Contains("一维码"))
{
// 生成一维码
TYPE barcodeType = cmbType.SelectedIndex == 0 ? TYPE.CODE128 : TYPE.CODE39;
barcodeImage = barcode.Encode(barcodeType, txtContent.Text, Color.Black, Color.White, 300, 100);
}
else
{
// 生成二维码
var qrWriter = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = new QrCodeEncodingOptions
{
Height = 200,
Width = 200,
Margin = 1
}
};
barcodeImage = qrWriter.Write(txtContent.Text);
}
picBarcode.Image = barcodeImage;
}
catch (Exception ex)
{
MessageBox.Show($"生成条码时出错: {ex.Message}");
}
};
btnPrint.Click += (s, e) =>
{
if (barcodeImage == null)
{
MessageBox.Show("请先生成条码");
return;
}
try
{
// 显示打印对话框
PrintDialog printDialog = new PrintDialog();
printDialog.Document = printDocument;
if (printDialog.ShowDialog() == DialogResult.OK)
{
printDocument.Print();
}
}
catch (Exception ex)
{
MessageBox.Show($"打印时出错: {ex.Message}");
}
};
// 添加控件到窗体
this.Controls.AddRange(new Control[] { lblText, txtContent, lblType, cmbType, btnGenerate, btnPrint, picBarcode });
}
private void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
{
if (barcodeImage != null)
{
// 计算居中位置
int x = (e.PageBounds.Width - barcodeImage.Width) / 2;
int y = (e.PageBounds.Height - barcodeImage.Height) / 2;
// 绘制条码
e.Graphics.DrawImage(barcodeImage, x, y);
}
}
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new MainForm());
}
}
}
功能说明
-
条码生成：
- 支持一维码（Code128和Code39）
- 支持二维码（QR Code）
- 可自定义条码内容
-
打印功能：
- 使用标准打印对话框
- 自动居中打印条码
- 支持选择打印机和设置打印参数
推荐项目 C# 条码打印程序（一维码和二维码） www.youwenfan.com/contentzhe/52029.html
扩展功能
如果您需要更高级的功能，可以考虑以下扩展：
1. 添加条码设置选项
// 可以添加设置条码大小、颜色、边距等选项的UI控件
var nudWidth = new NumericUpDown { Minimum = 100, Maximum = 500, Value = 200 };
var nudHeight = new NumericUpDown { Minimum = 50, Maximum = 500, Value = 100 };
2. 批量打印功能
// 可以添加数据源（如数据库或Excel文件）来批量生成和打印条码
public void PrintBatches(List<string> barcodeContents)
{
foreach (var content in barcodeContents)
{
// 生成条码
// 打印条码
// 可添加分页逻辑
}
}
3. 保存条码图像
// 添加保存功能
var btnSave = new Button { Text = "保存条码", Location = new Point(240, 80), Size = new Size(100, 30) };
btnSave.Click += (s, e) =>
{
if (barcodeImage != null)
{
SaveFileDialog saveDialog = new SaveFileDialog();
saveDialog.Filter = "PNG Image|*.png|JPEG Image|*.jpg|BMP Image|*.bmp";
if (saveDialog.ShowDialog() == DialogResult.OK)
{
barcodeImage.Save(saveDialog.FileName);
}
}
};
