C# 生成 DataMatrix 格式的二维码

该文主要是利用OnBarcode.dll 生成 DataMatrix 格式的二维码的一些简单方法和操作技巧。关于QrBarcode的二维码比较常见和简单，网上有很多资源。

1、附件为dll

2、利用上述控件生成二维码的核心代码：

(a)C# 代码:

   DataMatrix datamatrix = new DataMatrix();
   datamatrix.Data = "0123456789";
	        
   // Create Data Matrix and encode barcode to Jpeg format
   datamatrix.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
   datamatrix.drawBarcode("C://csharp-datamatrix.jpg");

(b) VB.NET 代码:

   Dim datamatrix As OnBarcode.Barcode.DataMatrix
   datamatrix = New OnBarcode.Barcode.DataMatrix()
   datamatrix.Data = "0123456789"
	        
   ‘ Create Data Matrix and encode barcode to Jpeg format
   datamatrix.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg
   datamatrix.drawBarcode("C://vbnet-datamatrix.jpg")

（c）其他函数接口（分别是C#和VB）：

public void drawBarcode(Graphics graphics);

   public void drawBarcode(string filename);

   public Bitmap drawBarcode();

   public void drawBarcode(Stream fileStream);

   Public Sub drawBarcode(ByRef graphics As Graphics)

   Public Sub drawBarcode(ByVal filename As String)

   Public Function drawBarcode() As Bitmap

   Public Sub drawBarcode(ByRef fileStream As Stream)

3、实践部分：

创建如下界面：按钮按下，生产条码。

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using OnBarcode.Barcode;

using System.Drawing.Imaging;

namespace DataMatrix1

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

DataMatrix datamatrix = new DataMatrix();

// Barcode data to encode

datamatrix.Data = "OnBarcode";

// Data Matrix data mode

datamatrix.DataMode = DataMatrixDataMode.ASCII;

// Data Matrix format mode

datamatrix.FormatMode = DataMatrixFormatMode.Format_10X10;

* Barcode Image Related Settings

// Unit of meature for all size related setting in the library.

datamatrix.UOM = UnitOfMeasure.PIXEL;

// Bar module size (X), default is 3 pixel;

datamatrix.X = 3;

// Barcode image left, right, top, bottom margins. Defaults are 0.

datamatrix.LeftMargin = 0;

datamatrix.RightMargin = 0;

datamatrix.TopMargin = 0;

datamatrix.BottomMargin = 0;

// Image resolution in dpi, default is 72 dpi.

datamatrix.Resolution = 72;

// Created barcode orientation.

// Rotate0 = 0,

// Rotate90 = 1,

// Rotate180 = 2,

// Rotate270 = 3,

// 4 options are: facing left, facing right, facing bottom, and facing top

datamatrix.Rotate = Rotate.Rotate0;

// Geneat data matrix and encode barcode to gif format

datamatrix.ImageFormat = System.Drawing.Imaging.ImageFormat.Bmp;

datamatrix.drawBarcode("C:\\datamatrix.jpg"); //以保存特定格式方法生产二维码

//You can also call other drawing methods to generate barcodes

//public void drawBarcode(Graphics graphics);

//public void drawBarcode(string filename);

//public Bitmap drawBarcode();

//public void drawBarcode(Stream stream); //将该种编码的格式，写入文件流之中

this.pictureBox1.Image = datamatrix.drawBarcode(); //调用其中一个接口，将图片以bitmap形式显示出来

}

测试结果：

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