第一种最常见,并且最简单的方式,直接把GridView导出,导出格式为文本表格形式。
protected void btnSaveExcel_Click(object sender, EventArgs e) { string FileName = "xxx"; System.IO.StringWriter objSW = new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter objHTW = new System.Web.UI.HtmlTextWriter(objSW); try { //設定格式 Response.Clear(); Response.Buffer = true; Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", FileName)); Response.ContentType = "application/ms-excel";// "application/vnd.ms-excel"; Response.Charset = "UTF-8"; this.EnableViewState = false; this.GridViewData.RenderControl(objHTW); Response.Write(objSW.ToString()); Response.End(); } catch (Exception ex) { string aa = ex.Message.ToString(); } finally { objSW.Close(); objSW = null; objHTW.Close(); objHTW = null; } } ///必须重载VerifyRenderingInServerForm, 不然会报错 public override void VerifyRenderingInServerForm(Control control) { //base.VerifyRenderingInServerForm(control); }
第二种:不用安装Excel,生成原生Excel格式方法
如果你和我一样要实现不调用Excel组件实现Excel数据导出的话,那我严重向你推荐MyXls,MyXls是用C#开源项目,可以应用于asp.net 或者 .net应用程序上。它根据微软公开的Excle文档格式文件(BIFF),以二进制格式直接生成excel文档,支持Excel versions 97 - 2007 。这意味着你可以不用在服务器上安装office就能够以excle格式输出数据库中存储的数据了,这对于许多项目来说都是很有用的
第一步,当然是下在MyXls,地址:http://sourceforge.net/projects/myxls/
第二步,添加引用org.in2bits.MyXls.dll
第三步,实现数据导出,我这里是将一个DataTable作为数据导出,导出后内容格式和DataTable一致,具体代码如下:
private void Output(DataTable dt) { org.in2bits.MyXls.XlsDocument doc = new org.in2bits.MyXls.XlsDocument(); doc.FileName = DateTime.Now.ToString().Replace("-", "").Replace(":", "").Replace(" ", "") + ".xls";//excel文件名称 org.in2bits.MyXls.Worksheet sheet = doc.Workbook.Worksheets.AddNamed("sheet1");//Excel工作表名称 org.in2bits.MyXls.Cells cells = sheet.Cells; int colnum = dt.Columns.Count;//获取DataTable列数 for (int i = 0; i < colnum; i++) { cells.Add(1, (i + 1), dt.Columns[i].Caption.ToString());//导出DataTable列名 } for (int i = 0; i < dt.Rows.Count; i++) { for (int j = 0; j < colnum; j++) { cells.Add((i + 2), (j + 1), dt.Rows[i][j].ToString()); } } //doc.Save(@"D:\"); //保存到指定位置 doc.Send();//把写好的excel文件输出到客户端 }
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列 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
效果
该代码出自(http://terryli.blog.51cto.com/704315/392125)
时间: 2024-10-11 13:13:59