C#生成code128条形码的方法
本文实例讲述了物流条形码的C#实现方法，分享一下供大家参考。具体实现方法如下：
主要功能代码如下：
using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
namespace Code
{
class BarCode
{
public class Code128
{
private DataTable m_Code128 = new DataTable();
private uint m_Height = 40;
/// <summary>
/// 高度
/// </summary>
public uint Height { get { return m_Height; } set { m_Height = value; } }
private Font m_ValueFont = null;
/// <summary>
/// 是否显示可见号码 如果为NULL不显示号码
/// </summary>
public Font ValueFont { get { return m_ValueFont; } set { m_ValueFont = value; } }
private byte m_Magnify = 0;
/// <summary>
/// 放大倍数
/// </summary>
public byte Magnify { get { return m_Magnify; } set { m_Magnify = value; } }
/// <summary>
/// 条码类别
/// </summary>
public enum Encode
{
Code128A,
Code128B,
Code128C,
EAN128
}
public Code128()
{
m_Code128.Columns.Add("ID");
m_Code128.Columns.Add("Code128A");
m_Code128.Columns.Add("Code128B");
m_Code128.Columns.Add("Code128C");
m_Code128.Columns.Add("BandCode");
m_Code128.CaseSensitive = true;
#region 数据表
m_Code128.Rows.Add("0", " ", " ", "00", "212222");
m_Code128.Rows.Add("1", "!", "!", "01", "222122");
m_Code128.Rows.Add("2", "\"", "\"", "02", "222221");
m_Code128.Rows.Add("3", "#", "#", "03", "121223");
m_Code128.Rows.Add("4", "$", "$", "04", "121322");
m_Code128.Rows.Add("5", "%", "%", "05", "131222");
m_Code128.Rows.Add("6", "&", "&", "06", "122213");
m_Code128.Rows.Add("7", "'", "'", "07", "122312");
m_Code128.Rows.Add("8", "(", "(", "08", "132212");
m_Code128.Rows.Add("9", ")", ")", "09", "221213");
m_Code128.Rows.Add("10", "*", "*", "10", "221312");
m_Code128.Rows.Add("11", "+", "+", "11", "231212");
m_Code128.Rows.Add("12", ",", ",", "12", "112232");
m_Code128.Rows.Add("13", "-", "-", "13", "122132");
m_Code128.Rows.Add("14", ".", ".", "14", "122231");
m_Code128.Rows.Add("15", "/", "/", "15", "113222");
m_Code128.Rows.Add("16", "0", "0", "16", "123122");
m_Code128.Rows.Add("17", "1", "1", "17", "123221");
m_Code128.Rows.Add("18", "2", "2", "18", "223211");
m_Code128.Rows.Add("19", "3", "3", "19", "221132");
m_Code128.Rows.Add("20", "4", "4", "20", "221231");
m_Code128.Rows.Add("21", "5", "5", "21", "213212");
m_Code128.Rows.Add("22", "6", "6", "22", "223112");
m_Code128.Rows.Add("23", "7", "7", "23", "312131");
m_Code128.Rows.Add("24", "8", "8", "24", "311222");
m_Code128.Rows.Add("25", "9", "9", "25", "321122");
m_Code128.Rows.Add("26", ":", ":", "26", "321221");
m_Code128.Rows.Add("27", ";", ";", "27", "312212");
m_Code128.Rows.Add("28", "<", "<", "28", "322112");
m_Code128.Rows.Add("29", "=", "=", "29", "322211");
m_Code128.Rows.Add("30", ">", ">", "30", "212123");
m_Code128.Rows.Add("31", "?", "?", "31", "212321");
m_Code128.Rows.Add("32", "@", "@", "32", "232121");
m_Code128.Rows.Add("33", "A", "A", "33", "111323");
m_Code128.Rows.Add("34", "B", "B", "34", "131123");
m_Code128.Rows.Add("35", "C", "C", "35", "131321");
m_Code128.Rows.Add("36", "D", "D", "36", "112313");
m_Code128.Rows.Add("37", "E", "E", "37", "132113");
m_Code128.Rows.Add("38", "F", "F", "38", "132311");
m_Code128.Rows.Add("39", "G", "G", "39", "211313");
m_Code128.Rows.Add("40", "H", "H", "40", "231113");
m_Code128.Rows.Add("41", "I", "I", "41", "231311");
m_Code128.Rows.Add("42", "J", "J", "42", "112133");
m_Code128.Rows.Add("43", "K", "K", "43", "112331");
m_Code128.Rows.Add("44", "L", "L", "44", "132131");
m_Code128.Rows.Add("45", "M", "M", "45", "113123");
m_Code128.Rows.Add("46", "N", "N", "46", "113321");
m_Code128.Rows.Add("47", "O", "O", "47", "133121");
m_Code128.Rows.Add("48", "P", "P", "48", "313121");
m_Code128.Rows.Add("49", "Q", "Q", "49", "211331");
m_Code128.Rows.Add("50", "R", "R", "50", "231131");
m_Code128.Rows.Add("51", "S", "S", "51", "213113");
m_Code128.Rows.Add("52", "T", "T", "52", "213311");
m_Code128.Rows.Add("53", "U", "U", "53", "213131");
m_Code128.Rows.Add("54", "V", "V", "54", "311123");
m_Code128.Rows.Add("55", "W", "W", "55", "311321");
m_Code128.Rows.Add("56", "X", "X", "56", "331121");
m_Code128.Rows.Add("57", "Y", "Y", "57", "312113");
m_Code128.Rows.Add("58", "Z", "Z", "58", "312311");
m_Code128.Rows.Add("59", "[", "[", "59", "332111");
m_Code128.Rows.Add("60", "\\", "\\", "60", "314111");
m_Code128.Rows.Add("61", "]", "]", "61", "221411");
m_Code128.Rows.Add("62", "^", "^", "62", "431111");
m_Code128.Rows.Add("63", "_", "_", "63", "111224");
m_Code128.Rows.Add("64", "NUL", "`", "64", "111422");
m_Code128.Rows.Add("65", "SOH", "a", "65", "121124");
m_Code128.Rows.Add("66", "STX", "b", "66", "121421");
m_Code128.Rows.Add("67", "ETX", "c", "67", "141122");
m_Code128.Rows.Add("68", "EOT", "d", "68", "141221");
m_Code128.Rows.Add("69", "ENQ", "e", "69", "112214");
m_Code128.Rows.Add("70", "ACK", "f", "70", "112412");
m_Code128.Rows.Add("71", "BEL", "g", "71", "122114");
m_Code128.Rows.Add("72", "BS", "h", "72", "122411");
m_Code128.Rows.Add("73", "HT", "i", "73", "142112");
m_Code128.Rows.Add("74", "LF", "j", "74", "142211");
m_Code128.Rows.Add("75", "VT", "k", "75", "241211");
m_Code128.Rows.Add("76", "FF", "I", "76", "221114");
m_Code128.Rows.Add("77", "CR", "m", "77", "413111");
m_Code128.Rows.Add("78", "SO", "n", "78", "241112");
m_Code128.Rows.Add("79", "SI", "o", "79", "134111");
m_Code128.Rows.Add("80", "DLE", "p", "80", "111242");
m_Code128.Rows.Add("81", "DC1", "q", "81", "121142");
m_Code128.Rows.Add("82", "DC2", "r", "82", "121241");
m_Code128.Rows.Add("83", "DC3", "s", "83", "114212");
m_Code128.Rows.Add("84", "DC4", "t", "84", "124112");
m_Code128.Rows.Add("85", "NAK", "u", "85", "124211");
m_Code128.Rows.Add("86", "SYN", "v", "86", "411212");
m_Code128.Rows.Add("87", "ETB", "w", "87", "421112");
m_Code128.Rows.Add("88", "CAN", "x", "88", "421211");
m_Code128.Rows.Add("89", "EM", "y", "89", "212141");
m_Code128.Rows.Add("90", "SUB", "z", "90", "214121");
m_Code128.Rows.Add("91", "ESC", "{", "91", "412121");
m_Code128.Rows.Add("92", "FS", "|", "92", "111143");
m_Code128.Rows.Add("93", "GS", "}", "93", "111341");
m_Code128.Rows.Add("94", "RS", "~", "94", "131141");
m_Code128.Rows.Add("95", "US", "DEL", "95", "114113");
m_Code128.Rows.Add("96", "FNC3", "FNC3", "96", "114311");
m_Code128.Rows.Add("97", "FNC2", "FNC2", "97", "411113");
m_Code128.Rows.Add("98", "SHIFT", "SHIFT", "98", "411311");
m_Code128.Rows.Add("99", "CODEC", "CODEC", "99", "113141");
m_Code128.Rows.Add("100", "CODEB", "FNC4", "CODEB", "114131");
m_Code128.Rows.Add("101", "FNC4", "CODEA", "CODEA", "311141");
m_Code128.Rows.Add("102", "FNC1", "FNC1", "FNC1", "411131");
m_Code128.Rows.Add("103", "StartA", "StartA", "StartA", "211412");
m_Code128.Rows.Add("104", "StartB", "StartB", "StartB", "211214");
m_Code128.Rows.Add("105", "StartC", "StartC", "StartC", "211232");
m_Code128.Rows.Add("106", "Stop", "Stop", "Stop", "2331112");
#endregion
}
/// <summary>
/// 获取128图形
/// </summary>
/// <param name="p_Text">文字</param>
/// <param name="p_Code">编码</param>
/// <returns>图形</returns>
public Bitmap GetCodeImage(string p_Text, Encode p_Code)
{
string _ViewText = p_Text;
string _Text = "";
IList<int> _TextNumb = new List<int>();
int _Examine = 0; //首位
switch (p_Code)
{
case Encode.Code128C:
_Examine = 105;
if (!((p_Text.Length & 1) == 0)) throw new Exception("128C长度必须是偶数");
while (p_Text.Length != 0)
{
int _Temp = 0;
try
{
int _CodeNumb128 = Int32.Parse(p_Text.Substring(0, 2));
}
catch
{
throw new Exception("128C必须是数字！");
}
_Text += GetValue(p_Code, p_Text.Substring(0, 2), ref _Temp);
_TextNumb.Add(_Temp);
p_Text = p_Text.Remove(0, 2);
}
break;
case Encode.EAN128:
_Examine = 105;
if (!((p_Text.Length & 1) == 0)) throw new Exception("EAN128长度必须是偶数");
_TextNumb.Add(102);
_Text += "411131";
while (p_Text.Length != 0)
{
int _Temp = 0;
try
{
int _CodeNumb128 = Int32.Parse(p_Text.Substring(0, 2));
}
catch
{
throw new Exception("128C必须是数字！");
}
_Text += GetValue(Encode.Code128C, p_Text.Substring(0, 2), ref _Temp);
_TextNumb.Add(_Temp);
p_Text = p_Text.Remove(0, 2);
}
break;
default:
if (p_Code == Encode.Code128A)
{
_Examine = 103;
}
else
{
_Examine = 104;
}
while (p_Text.Length != 0)
{
int _Temp = 0;
string _ValueCode = GetValue(p_Code, p_Text.Substring(0, 1), ref _Temp);
if (_ValueCode.Length == 0) throw new Exception("无效的字符集!" + p_Text.Substring(0, 1).ToString());
_Text += _ValueCode;
_TextNumb.Add(_Temp);
p_Text = p_Text.Remove(0, 1);
}
break;
}
if (_TextNumb.Count == 0) throw new Exception("错误的编码,无数据");
_Text = _Text.Insert(0, GetValue(_Examine)); //获取开始位
for (int i = 0; i != _TextNumb.Count; i++)
{
_Examine += _TextNumb[i] * (i + 1);
}
_Examine = _Examine % 103; //获得严效位
_Text += GetValue(_Examine); //获取严效位
_Text += "2331112"; //结束位
Bitmap _CodeImage = GetImage(_Text);
GetViewText(_CodeImage, _ViewText);
return _CodeImage;
}
/// <summary>
/// 获取目标对应的数据
/// </summary>
/// <param name="p_Code">编码</param>
/// <param name="p_Value">数值 A b 30</param>
/// <param name="p_SetID">返回编号</param>
/// <returns>编码</returns>
private string GetValue(Encode p_Code, string p_Value, ref int p_SetID)
{
if (m_Code128 == null) return "";
DataRow[] _Row = m_Code128.Select(p_Code.ToString() + "='" + p_Value + "'");
if (_Row.Length != 1) throw new Exception("错误的编码" + p_Value.ToString());
p_SetID = Int32.Parse(_Row[0]["ID"].ToString());
return _Row[0]["BandCode"].ToString();
}
/// <summary>
/// 根据编号获得条纹
/// </summary>
/// <param name="p_CodeId"></param>
/// <returns></returns>
private string GetValue(int p_CodeId)
{
DataRow[] _Row = m_Code128.Select("ID='" + p_CodeId.ToString() + "'");
if (_Row.Length != 1) throw new Exception("验效位的编码错误" + p_CodeId.ToString());
return _Row[0]["BandCode"].ToString();
}
/// <summary>
/// 获得条码图形
/// </summary>
/// <param name="p_Text">文字</param>
/// <returns>图形</returns>
private Bitmap GetImage(string p_Text)
{
char[] _Value = p_Text.ToCharArray();
int _Width = 0;
for (int i = 0; i != _Value.Length; i++)
{
_Width += Int32.Parse(_Value[i].ToString()) * (m_Magnify + 1);
}
Bitmap _CodeImage = new Bitmap(_Width, (int)m_Height);
Graphics _Garphics = Graphics.FromImage(_CodeImage);
//Pen _Pen;
int _LenEx = 0;
for (int i = 0; i != _Value.Length; i++)
{
int _ValueNumb = Int32.Parse(_Value[i].ToString()) * (m_Magnify + 1); //获取宽和放大系数
if (!((i & 1) == 0))
{
//_Pen = new Pen(Brushes.White, _ValueNumb);
_Garphics.FillRectangle(Brushes.White, new Rectangle(_LenEx, 0, _ValueNumb, (int)m_Height));
}
else
{
//_Pen = new Pen(Brushes.Black, _ValueNumb);
_Garphics.FillRectangle(Brushes.Black, new Rectangle(_LenEx, 0, _ValueNumb, (int)m_Height));
}
//_Garphics.(_Pen, new Point(_LenEx, 0), new Point(_LenEx, m_Height));
_LenEx += _ValueNumb;
}
_Garphics.Dispose();
return _CodeImage;
}
/// <summary>
/// 显示可见条码文字 如果小于40 不显示文字
/// </summary>
/// <param name="p_Bitmap">图形</param>
private void GetViewText(Bitmap p_Bitmap, string p_ViewText)
{
if (m_ValueFont == null) return;
Graphics _Graphics = Graphics.FromImage(p_Bitmap);
SizeF _DrawSize = _Graphics.MeasureString(p_ViewText, m_ValueFont);
if (_DrawSize.Height > p_Bitmap.Height - 10 || _DrawSize.Width > p_Bitmap.Width)
{
_Graphics.Dispose();
return;
}
int _StarY = p_Bitmap.Height - (int)_DrawSize.Height;
_Graphics.FillRectangle(Brushes.White, new Rectangle(0, _StarY, p_Bitmap.Width, (int)_DrawSize.Height));
_Graphics.DrawString(p_ViewText, m_ValueFont, Brushes.Black, 0, _StarY);
}
//12345678
//(105 + (1 * 12 + 2 * 34 + 3 * 56 + 4 *78)) % 103 = 47
//结果为starc +12 +34 +56 +78 +47 +end
internal Image GetCodeImage(string p)
{
throw new NotImplementedException();
}
}
}
}
调用代码为：
Code128 _Code = new Code128();
_Code.ValueFont = new Font("宋体", 20);
System.Drawing.Bitmap imgTemp = _Code.GetCodeImage("T26200-1900-123-1-0900",Code128.Encode.Code128A);
imgTemp.Save(System.AppDomain.CurrentDomain.BaseDirectory + "\\" + "BarCode.gif", System.Drawing.Imaging.ImageFormat.Gif);
希望本文所述方法对大家的C#程序设计有所帮助。
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1.什么是条形码? 百度百科定义:条形码(barcode)是将宽度不等的多个黑条和空白,按照一定的编码规则排列,用以表达一组信息的图形标识符.常见的条形码是由反射率相差很大的黑条(简称条)和白条(简称空)排成平行线的图案.在日常生活中,条形码可以标出物品的生产国.制造厂家.商品名称.生产日期.图书分类号.邮件地点起止.类别.日期等许多信息.条形码编码格式具体请参考 打印出来的优惠券,商家需要用验证器读取条形码,来获得其有效性. 2.如何生成条形码? 首先找到强大的开源资料,在barcode官网下