winform程序生成条形码并且并且保存到本地文件中。

  1 using System;
  2 using System.Drawing;
  3 using System.Drawing.Imaging;
  4 using System.IO;
  5 public sealed class Code39
  6 {
  7     #region private variables
  8     /// <summary> 
  9     /// The Space Between each of Title, BarCode, BarCodeString 
 10     /// </summary> 
 11     private const int SPACE_HEIGHT = 3;
 12     SizeF _sizeLabel = SizeF.Empty;
 13     SizeF _sizeBarCodeValue = SizeF.Empty;
 14     SizeF _sizeBarCodeString = SizeF.Empty;
 15     #endregion
 16     #region Label
 17     private string _label = null;
 18     private Font _labelFont = null;
 19     /// <summary> 
 20     /// BarCode Title (条码标签) 
 21     /// </summary> 
 22     public string Label
 23     {
 24         set { _label = value; }
 25     }
 26     /// <summary> 
 27     /// BarCode Title Font (条码标签使用的字体) 
 28     /// </summary> 
 29     public Font LabelFont
 30     {
 31         get
 32         {
 33             if (_labelFont == null)
 34                 return new Font("Code 128", 10);
 35             return _labelFont;
 36         }
 37         set { _labelFont = value; }
 38     }
 39     #endregion
 40     private string _additionalInfo = null;
 41     private Font _addtionalInfoFont = null;
 42     /// <summary> 
 43     /// Additional Info Font (附加信息字体) 
 44     /// </summary> 
 45     public Font AdditionalInfoFont
 46     {
 47         set { _addtionalInfoFont = value; }
 48         get
 49         {
 50             if (_addtionalInfoFont == null) return new Font("Code 128", 10);
 51             return _addtionalInfoFont;
 52         }
 53     }
 54     /// <summary> 
 55     /// Additional Info Content, if "ShowBarCodeValue" is true, the info is unvisible 
 56     /// 附加信息，如果设置ShowBarCodeValue为true,则此项不显示 
 57     /// </summary> 
 58     public string AdditionalInfo
 59     {
 60         set { _additionalInfo = value; }
 61     }
 62     #region BarCode Value and Font
 63     private string _barCodeValue = null;
 64     /// <summary> 
 65     /// BarCode Value (条码值) 
 66     /// </summary> 
 67     public string BarCodeValue
 68     {
 69         get
 70         {
 71             if (string.IsNullOrEmpty(_barCodeValue))
 72                 throw new NullReferenceException("The BarCodeValue has not been set yet!");
 73             return _barCodeValue;
 74         }
 75         set { _barCodeValue = value.StartsWith("*") && value.EndsWith("*") ? value : "*" + value + "*"; }
 76     }
 77     private bool _showBarCodeValue = false;
 78     /// <summary> 
 79     /// whether to show the original string of barcode value bellow the barcode 
 80     /// 是否在条码下方显示条码值，默认为false 
 81     /// </summary> 
 82     public bool ShowBarCodeValue
 83     {
 84         set { _showBarCodeValue = value; }
 85     }
 86     private Font _barCodeValueFont = null;
 87     /// <summary> 
 88     /// the font of the codestring to show 
 89     /// 条码下方显示的条码值的字体 
 90     /// </summary> 
 91     public Font BarCodeValueFont
 92     {
 93         get
 94         {
 95             if (_barCodeValueFont == null)
 96                 return new Font("Code 128", 50);
 97             return _barCodeValueFont;
 98         }
 99         set { _barCodeValueFont = value; }
100     }
101     private int _barCodeFontSize = 50;
102     /// <summary> 
103     /// the font size of the barcode value to draw 
104     /// 条码绘制的大小，默认50 
105     /// </summary> 
106     public int BarCodeFontSzie
107     {
108         set { _barCodeFontSize = value; }
109     }
110     #endregion
111     #region generate the barcode image
112     private Bitmap BlankBackImage
113     {
114         get
115         {
116             int barCodeWidth = 0, barCodeHeight = 0;
117             using (Bitmap bmp = new Bitmap(1, 1, PixelFormat.Format32bppArgb))
118             {
119                 using (Graphics g = Graphics.FromImage(bmp))
120                 {
121                     if (!string.IsNullOrEmpty(_label))
122                     {
123                         _sizeLabel = g.MeasureString(_label, LabelFont);
124                         barCodeWidth = (int)_sizeLabel.Width;
125                         barCodeHeight = (int)_sizeLabel.Height + SPACE_HEIGHT;
126                     }
127                     _sizeBarCodeValue = g.MeasureString(BarCodeValue, new Font("Free 3 of 9 Extended", _barCodeFontSize));
128                     barCodeWidth = Math.Max(barCodeWidth, (int)_sizeBarCodeValue.Width);
129                     barCodeHeight += (int)_sizeBarCodeValue.Height;
130                     if (_showBarCodeValue)
131                     {
132                         _sizeBarCodeString = g.MeasureString(_barCodeValue, BarCodeValueFont);
133                         barCodeWidth = Math.Max(barCodeWidth, (int)_sizeBarCodeString.Width);
134                         barCodeHeight += (int)_sizeBarCodeString.Height + SPACE_HEIGHT;
135                     }
136                     //else 
137                     //{ 
138                     // if (!string.IsNullOrEmpty(_additionalInfo)) 
139                     // { 
140                     // _sizeAdditionalInfo = g.MeasureString(_additionalInfo, AdditionalInfoFont); 
141                     // barCodeWidth = Math.Max(barCodeWidth, (int)_sizeAdditionalInfo.Width); 
142                     // barCodeHeight += (int)_sizeAdditionalInfo.Height + SPACE_HEIGHT; 
143                     // } 
144                     //} 
145                 }
146             }
147             return new Bitmap(barCodeWidth, barCodeHeight, PixelFormat.Format32bppArgb);
148         }
149     }
150     /// <summary> 
151     /// Draw the barcode value to the blank back image and output it to the browser 
152     /// 绘制WebForm形式的条码 
153     /// </summary> 
154     /// <param name="ms">Recommand the "Response.OutputStream" 使用 Response.OutputStream</param> 
155     /// <param name="imageFormat">The Image format to the Browser 输出到浏览器到图片格式，建议GIF</param> 
156     public Bitmap CreateWebForm(Stream ms, ImageFormat imageFormat)
157     {
158         int barCodeWidth, barCodeHeight;
159         using (Bitmap bmp = this.BlankBackImage)
160         {
161             barCodeHeight = bmp.Height;
162             barCodeWidth = bmp.Width;
163             using (Graphics g = Graphics.FromImage(bmp))
164             {
165                 g.Clear(Color.White);
166                 g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
167                 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
168                 int vPos = 0;
169                 ////Draw Label String 
170                 if (!string.IsNullOrEmpty(_label))
171                 {
172                     g.DrawString(_label, LabelFont, new SolidBrush(Color.Black),
173                     XCenter((int)_sizeLabel.Width, barCodeWidth), vPos);
174                     vPos += (int)_sizeLabel.Height + SPACE_HEIGHT;
175                 }
176                 else { vPos = SPACE_HEIGHT; }
177                 ////Draw The Bar Value 
178                 g.DrawString(_barCodeValue, new Font("Free 3 of 9 Extended", _barCodeFontSize), new SolidBrush(Color.Black),
179                 XCenter((int)_sizeBarCodeValue.Width, barCodeWidth), vPos);
180                 ////Draw the BarValue String 
181                 if (_showBarCodeValue)
182                 {
183                     g.DrawString(_barCodeValue, BarCodeValueFont, new SolidBrush(Color.Black),
184                     XCenter((int)_sizeBarCodeString.Width, barCodeWidth),
185                     vPos + (int)_sizeBarCodeValue.Height);
186                 }
187                 //else 
188                 //{ 
189                 // if (!string.IsNullOrEmpty(_additionalInfo)) 
190                 // { 
191                 // g.DrawString(_additionalInfo, AdditionalInfoFont, new SolidBrush(Color.Black), 
192                 // XCenter((int)_sizeAdditionalInfo.Width, barCodeWidth), 
193                 // vPos + (int)_sizeBarCodeValue.Height); 
194                 // } 
195                 //} 
196             }
197             bmp.Save(ms, imageFormat);
198             return bmp;
199         }
200     }
201     /// <summary> 
202     /// 生成winform格式的条码 
203     /// </summary> 
204     /// <param name="imageFormat">图片格式，建议GIF</param> 
205     /// <returns>Stream类型</returns> 
206     public Stream CreateWinForm(ImageFormat imageFormat)
207     {
208         int barCodeWidth, barCodeHeight;
209         using (Bitmap bmp = this.BlankBackImage)
210         {
211             barCodeHeight = bmp.Height;
212             barCodeWidth = bmp.Width;
213             using (Graphics g = Graphics.FromImage(bmp))
214             {
215                 g.Clear(Color.White);
216                 g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
217                 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
218                 int vPos = 0;
219                 ////Draw Label String 
220                 if (!string.IsNullOrEmpty(_label))
221                 {
222                     g.DrawString(_label, LabelFont, new SolidBrush(Color.Black),
223                     XCenter((int)_sizeLabel.Width, barCodeWidth), vPos);
224                     vPos += (int)_sizeLabel.Height + SPACE_HEIGHT;
225                 }
226                 else { vPos = SPACE_HEIGHT; }
227                 ////Draw The Bar Value 
228                 g.DrawString(_barCodeValue, new Font("Free 3 of 9 Extended", _barCodeFontSize), new SolidBrush(Color.Black),
229                 XCenter((int)_sizeBarCodeValue.Width, barCodeWidth), vPos);
230                 ////Draw the BarValue String 
231                 if (_showBarCodeValue)
232                 {
233                     g.DrawString(_barCodeValue, BarCodeValueFont, new SolidBrush(Color.Black),
234                     XCenter((int)_sizeBarCodeString.Width, barCodeWidth),
235                     vPos + (int)_sizeBarCodeValue.Height);
236                 }
237                 //else 
238                 //{ 
239                 // //if (!string.IsNullOrEmpty(_additionalInfo)) 
240                 // //{ 
241                 // // g.DrawString(_additionalInfo, AdditionalInfoFont, new SolidBrush(Color.Black), 
242                 // // //XCenter((int)_sizeAdditionalInfo.Width, barCodeWidth), 
243                 // // vPos + (int)_sizeBarCodeValue.Height); 
244                 // //} 
245                 //} 
246             }
247             Stream ms = new MemoryStream();
248             bmp.Save(ms, imageFormat);
249             return ms;
250         }
251     }
252     #endregion
253     private static int XCenter(int subWidth, int globalWidth)
254     {
255         return (globalWidth - subWidth) / 2;
256     }
257 }

1 Bitmap b=new Bitmap(200,200); 
2  Graphics g = Graphics.FromImage(b); 
3  Font font = new Font("Code39AzaleaRegular2", 32); 
4  g.DrawString("123456", font, Brushes.Black, new PointF(100,100));  
5  pictureBox1.BackgroundImage = b;
6  pictureBox1.BackgroundImageLayout = ImageLayout.Zoom

// 新建一个.aspx文件
protected void Page_Load(object sender, EventArgs e) 
{ 
Code39 code39 = new Code39(); 
code39.BarCodeValue = "LDSO-001"; 
code39.BarCodeFontSzie = 60; 
// code39.Label = "39码，底部显示码值"; 
code39.ShowBarCodeValue = true; 
Response.Write(code39.CreateWebForm(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif)); 
code39 = null; 
} 

 1  　　　　　　// 获取文本框内容
 2             string barCode = tb_barcode.Text;
 3 
 4             Code39 code39 = new Code39();
 5 
 6             code39.BarCodeValue = barCode;
 7 
 8             code39.BarCodeFontSzie = 10;
 9 
10             // code39.Label = barCode; 
11             code39.ShowBarCodeValue = true;
12             // 将生成的条形码存放到picturebox控件的image中
13             pic_show.Image = Image.FromStream(code39.CreateWinForm(System.Drawing.Imaging.ImageFormat.Gif));

 1  if (pic_show.Image != null)
 2             {
 3                 // 点击保存时候弹出本地窗口进行图片保存
 4 
 5                 SaveFileDialog sfd = new SaveFileDialog();
 6                 // 设置文件数据类型
 7                 sfd.Filter = "数据保存文件（*.jpg）|*.jpg|数据保存文件（*.png）|*.png|数据保存文件（*.bmp）|*.bmp";
 8                 // 设置默认文件类型顺序
 9                 sfd.FilterIndex = 1;
10 
11                 // 保存对话框是否记忆上一次打开的路径
12                 sfd.RestoreDirectory = true;
13                 // 
14                 if (sfd.ShowDialog() == DialogResult.OK)
15                 {
16                     string localFilePath = sfd.FileName.ToString(); //获得文件路径
17 
18                     string fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("//") + 1); //获取文件名，不带路径
19                     
20                     Bitmap bmp = new Bitmap(pic_show.Image);
21                     // 保存文件到指定流
22                     bmp.Save(localFilePath);
23                      
24 
25                 }
26             }