优秀开源项目:MyXls

如果从快速生成Excel报表,不调用Excel组件角度讲,MyXls可能是一种最好的选择之一,当然使用Open Xml方式也是不错的选择。MyXls是一个用C#语言开发的生成Excel报表的优秀开源项目,在快速开发中我一直比较喜欢它。MyXls官方的解释:
Writes and now Reads Excel files quickly and easily, including formatting. Generate Excel files for ASP.NET sites or .NET applications. Doesn't require Excel on the server or any licensing $. Compatible with Excel versions >= 97
 
MyXls可以用在.NET平台的诸如Windows Form,Asp.NET项目中,当然Sharepoint项目中也可以使用,支持的Excel版本包裹2003,2007等等(Excel versions >= 97)。
大凡开源项目的作者,多半都是重口味者,MyXls开源组件基于的技术是Excel文件的二进制格式(BIFF),    OpenOffice.org 发布过的俩个文档 Excel File Format (BIFF8) Specification Microsoft Compound Document (OLE2) Format Specification Excel 的二进制格式做了一个比较详细的说明,MyXls的作者正是凭借这些信息把它开发而成的。
MyXls的下载地址:MyXls
 
下面通过2个例子来使用这个开源组件
生成单个Worksheet:
                        XlsDocument doc = new XlsDocument();
                        doc.FileName = "MyXlsWebAppDemo.xls";
                        Worksheet sheet = doc.Workbook.Worksheets.Add( "Hello World Sheet");
                        Cell cell = sheet.Cells.Add(1, 1, "Hello,MyXls!");
                         for ( int i = 2; i <= 10; i++)
                        {
                                cell = sheet.Cells.Add(i, 1, "51CTO五岁了!");
                                cell.Font.Weight = FontWeight.Bold;
                                cell.Font.ColorIndex =2; //白 红 绿 蓝 黄 粉红等等颜色,可以通过源代码了解颜色
                        }
                        
                        doc.Send();
 
生成的报表如下:
 
生成多个WorkSheet
XlsDocument xls = new XlsDocument(); //新建一个xls文档
                        xls.FileName = "MyXlsDemo.xls"; //设定Excel文件名

                        xls.SummaryInformation.Author = "Terry Li"; //填加Excel文件作者信息
                        xls.SummaryInformation.Subject = "MyXls Demo"; //填加文件主题信息
                        xls.DocumentSummaryInformation.Company = "in2bits.org"; //填加文件公司信息

string sheetName = "第一个Sheet Demo"; #region    

                         string sheetName = "第一个Sheet Demo";
                        Worksheet sheet = xls.Workbook.Worksheets.Add(sheetName); //填加名为"第一个Sheet Demo"的sheet页
                        Cells cells = sheet.Cells; //Cells实例是sheet页中单元格(cell)集合
                         //单元格1-base
                        Cell cell = cells.Add(2, 3, "三"); //设定第2行,第3例单元格的值
                        cell.HorizontalAlignment = HorizontalAlignments.Centered; //设定文字居中
                        cell.Font.FontName = "行楷"; //设定字体
                        cell.Font.Height = 30 * 20; //设定字大小(字体大小是以 1/20 point 为单位的)
                        cell.UseBorder = true; //使用边框
                        cell.BottomLineStyle = 2; //设定边框底线为粗线
                        cell.BottomLineColor = Colors.Red; //设定颜色为红色
                        cell.RightLineStyle = 2;
                        cell.RightLineColor = Colors.Red;
                        
                        

                         //cell的格式还可以定义在一个xf对象中
                        XF cellXF = xls.NewXF(); //为xls生成一个XF实例(XF是cell格式对象)
                        cellXF.HorizontalAlignment = HorizontalAlignments.Centered; //设定文字居中
                        cellXF.Font.FontName = "隶书"; //设定字体
                        cellXF.Font.Height = 30 * 20; //设定字大小(字体大小是以 1/20 point 为单位的)
                        cellXF.UseBorder = true; //使用边框
                        cellXF.BottomLineStyle = 2; //设定边框底线为粗线
                        cellXF.BottomLineColor = Colors.Green; //设定颜色为绿色
                        cellXF.LeftLineStyle = 2; //设定边框左线为粗线
                        cellXF.LeftLineColor = Colors.Green;

                        cell = cells.Add(3, 3, "国", cellXF); //以设定好的格式填加cell

                        cellXF.Font.FontName = "仿宋_GB2312";
                        cellXF.BottomLineStyle = 2; //设定边框底线为粗线
                        cellXF.BottomLineColor = Colors.Blue; //设定颜色为蓝色
                        cellXF.RightLineStyle = 2; //设定边框右线为粗线
                        cellXF.RightLineColor = Colors.Blue; //设定颜色为蓝色
                        cellXF.LeftLineStyle = 0;
                        cell = cells.Add(4, 3, "志", cellXF); //格式可以多次使用

                         //ColumnInfo colInfo = new ColumnInfo(xls, sheet);//生成列格式对象
                         ////设定colInfo格式的起作用的列为第2列到第5列(列格式为0-base)
                         //colInfo.ColumnIndexStart = 1;//起始列为第二列
                         //colInfo.ColumnIndexEnd = 5;//终止列为第六列
                         //colInfo.Width = 15 * 256;//列的宽度计量单位为 1/256 字符宽
                         //sheet.AddColumnInfo(colInfo);//把格式附加到sheet页上(注:AddColumnInfo方法有点小问题,不给把colInfo对象多次附给sheet页)
                         //colInfo.ColumnIndexEnd = 6;//可以更改列对象的值
                         //ColumnInfo colInfo2 = new ColumnInfo(xls, sheet);//通过新生成一个列格式对象,才到能设定其它列宽度
                         //colInfo2.ColumnIndexStart = 7;
                         //colInfo2.ColumnIndexEnd = 8;
                         //colInfo2.Width = 20 * 256;
                         //sheet.AddColumnInfo(colInfo2);

                        MergeArea meaA = new MergeArea(2, 3, 5, 7); //一个合并单元格实例(合并第2行、第5例 到 第3行、第7例)
                        sheet.AddMergeArea(meaA); //填加合并单元格
                        cellXF.VerticalAlignment = VerticalAlignments.Centered;
                        cellXF.Font.FontName = "隶书";
                         //cellXF.Font.Height = 48 * 20;
                         //cellXF.Font.Bold = true;
                        cellXF.Pattern = 1; //设定单元格填充风格。如果设定为0,则是纯色填充(无色),1代表没有间隙的实色
                        cellXF.PatternBackgroundColor = Colors.Red; //填充的底色
                        cellXF.PatternColor = Colors.Green; //设定填充线条的颜色
                        cell = cells.Add(2, 5, "晋/陈寿", cellXF);
                        #endregion

                        sheet.Cells.Merge(7, 9, 1, 4);
                        cell = cells.Add(7, 1, "MyXls 合并单元格 Demo");
                        cell.HorizontalAlignment = HorizontalAlignments.Centered;
                        cell.VerticalAlignment = VerticalAlignments.Centered;

                         for ( int sheetNumber = 1; sheetNumber <= 4; sheetNumber++)
                        {
                                sheetName = "Sheet " + sheetNumber;
                                 int rowMin = sheetNumber;
                                 int rowCount = sheetNumber + 10;
                                 int colMin = sheetNumber;
                                 int colCount = sheetNumber + 10;
                                sheet = xls.Workbook.Worksheets.Add(sheetName);
                                cells = sheet.Cells;
                                 for ( int r = 0; r < rowCount; r++)
                                {
                                         if (r == 0)
                                        {
                                                 for ( int c = 0; c < colCount; c++)
                                                {
                                                        cells.Add(rowMin + r, colMin + c, "Column" + (c + 1)).Font.Bold = true;
                                                }
                                        }
                                         else
                                        {
                                                 for ( int c = 0; c < colCount; c++)
                                                {
                                                         int val = r + c;
                                                        cell = cells.Add(rowMin + r, colMin + c, val+ ":51CTO五岁了!");
                                                         if (val % 2 != 0)
                                                        {
                                                                cell.HorizontalAlignment = HorizontalAlignments.Centered;
                                                                cell.Font.FontName = "Times New Roman";
                                                                cell.Font.Underline = UnderlineTypes.Double;
                                                                cell.Font.ColorIndex = 2;
                                                                cell.Rotation = 45; //字符倾斜45度
                                                        }
                                                }
                                        }
                                }
                        }

                        xls.Send(); //XlsDocument.SendMethods.Inline
 
 
 

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