.NET绘制条码Code128A,Code128B,Code128C,EAN128

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原创最新推荐文章于 2026-07-01 18:45:16 发布 1k 阅读 AI 写同款· GEO 优化 ›

.NET条码识别和解码控件Barcode Reader SDK Barcode Reader SDK for .NET是一款功能强大的条码识别控件，为开发人员添加条码识别和解码功能到.NET应用程序中，该控件可从图像以及扫描文档等识别、读取和解码几乎所有当前流行的1维条码，兼容Visual Studio 2005、2008、2010，同时支持WinForm和WebForm。具体功能：识别条码时为每个检测到的条码返回字符串和二进制值可辨别检测到条阅读详情

发一个CODE128条码绘制类。只支持Code128A,Code128B,Code128C,EAN128。

128C和EAN128是双位的也就是本身码一次取两位。而且必须是数字。EAN128和128C不同在与 EAN128前比128C多了一个EAN位（102），多的这一位是参与验效的。

如 2008 128C验效 (105 + (1 * 20+ 2 * 8 )) % 103

EAN验效 (105+(1*102+2*20+3*8))%103 这里的102是EAN的头位。

属性
Height 绘制图形的高度

ValueFont 是否显示可见号码如果为NULL不显示号码。如果字体绘制如果大于条码所用的大小，即使设置了FONT也不会显示。
Magnify 放大倍数

使用

  BandCode.Code128 _Code =  new  BandCode.Code128(); 
            _Code.ValueFont =  new  Font( "宋体" , 10); 
          
            pictureBox1.Image=_Code.GetCodeImage( "20081011001010020001" , BandCode.Code128.Encode.Code128C); 
            pictureBox1.Image.Save(@ "C:/B.BMP" ); 
 

完整的类

using System;
using System.Data;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
namespace CopyDirectoryInfo
{
/// <summary>
/// Code128A,Code128B,Code128C,EAN128条码
/// zgke@sina.com
/// qq:116149
/// </summary>
public class BandCode
{
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
}
}
}