ASP_NET 导入EXCEL(HTML样式)
ASP.NET 导入EXCEL 总汇2008年02月21日 星期四 下午 02:371、由dataset生成public void CreateExcel(DataSet ds,string typeid,string FileName) { HttpResponse resp; resp = Page.Response; resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName); string colHeaders= "", ls_item=""; int i=0; //定义表对象与行对像，同时用DataSet对其值进行初始化 DataTable dt=ds.Tables; DataRow[] myRow=dt.Select(""); // typeid=="1"时导出为EXCEL格式文件；typeid=="2"时导出为XML格式文件 if(typeid=="1") { //取得数据表各列标题，各标题之间以\t分割，最后一个列标题后加回车符 for(i=0;i colHeaders+=dt.Columns.Caption.ToString()+"\t"; colHeaders +=dt.Columns.Caption.ToString() +"\n"; //向HTTP输出流中写入取得的数据信息 resp.Write(colHeaders); //逐行处理数据 foreach(DataRow row in myRow) { //在当前行中，逐列获得数据，数据之间以\t分割，结束时加回车符\n for(i=0;i ls_item +=row.ToString() + "\t"; ls_item += row.ToString() +"\n"; //当前行数据写入HTTP输出流，并且置空ls_item以便下行数据 resp.Write(ls_item); ls_item=""; } } else { if(typeid=="2") { //从DataSet中直接导出XML数据并且写到HTTP输出流中 resp.Write(ds.GetXml()); } } //写缓冲区中的数据到HTTP头文件中 resp.End();}2、由datagrid生成public void ToExcel(System.Web.UI.Control ctl) { HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Excel.xls"); HttpContext.Current.Response.Charset ="UTF-8"; HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default; HttpContext.Current.Response.ContentType ="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.msexcel/msword ctl.Page.EnableViewState =false; System.IO.StringWriter tw = new System.IO.StringWriter() ; System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw); ctl.RenderControl(hw); HttpContext.Current.Response.Write(tw.ToString()); HttpContext.Current.Response.End();}用法：ToExcel(datagrid1);3、这个用dataviewpublic void OutputExcel(DataView dv,string str){ // // TODO: 在此处添加构造函数逻辑 // //dv为要输出到Excel的数据，str为标题名称 GC.Collect(); Application excel;// = new Application(); int rowIndex=4; int colIndex=1; _Workbook xBk; _Worksheet xSt; excel= new ApplicationClass(); xBk = excel.Workbooks.Add(true); xSt = (_Worksheet)xBk.ActiveSheet; // //取得标题 // foreach(DataColumn col in dv.Table.Columns) { colIndex++; excel.Cells = col.ColumnName; xSt.get_Range(excel.Cells,excel.Cells).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置标题格式为居中对齐 } // //取得表格中的数据 // foreach(DataRowView row in dv) { rowIndex ++; colIndex = 1; foreach(DataColumn col in dv.Table.Columns) { colIndex ++; if(col.DataType == System.Type.GetType("System.DateTime")) { excel.Cells = (Convert.ToDateTime(row.ToString())).ToString("yyyy-MM-dd"); xSt.get_Range(excel.Cells,excel.Cells).HorizontalAlignment =XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐 } else if(col.DataType == System.Type.GetType("System.String")) { excel.Cells = "’"+row.ToString(); xSt.get_Range(excel.Cells,excel.Cells).HorizontalAlignment =XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐 } else { excel.Cells = row.ToString(); } } } // //加载一个合计行 // int rowSum = rowIndex + 1; int colSum = 2; excel.Cells = "合计"; xSt.get_Range(excel.Cells,excel.Cells).HorizontalAlignment = XlHAlign.xlHAlignCenter; // //设置选中的部分的颜色 // xSt.get_Range(excel.Cells,excel.Cells).Select(); xSt.get_Range(excel.Cells,excel.Cells).Interior.ColorIndex = 19;//设置为浅黄色，共计有56种 // //取得整个报表的标题 // excel.Cells = str; // //设置整个报表的标题格式 // xSt.get_Range(excel.Cells,excel.Cells).Font.Bold = true; xSt.get_Range(excel.Cells,excel.Cells).Font.Size = 22; // //设置报表表格为最适应宽度 // xSt.get_Range(excel.Cells,excel.Cells).Select(); xSt.get_Range(excel.Cells,excel.Cells).Columns.AutoFit(); // //设置整个报表的标题为跨列居中 // xSt.get_Range(excel.Cells,excel.Cells).Select(); xSt.get_Range(excel.Cells,excel.Cells).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection; // //绘制边框 // xSt.get_Range(excel.Cells,excel.Cells).Borders.LineStyle = 1; xSt.get_Range(excel.Cells,excel.Cells).Borders.Weight =XlBorderWeight.xlThick;//设置左边线加粗 xSt.get_Range(excel.Cells,excel.Cells).Borders.Weight =XlBorderWeight.xlThick;//设置上边线加粗 xSt.get_Range(excel.Cells,excel.Cells).Borders.Weight =XlBorderWeight.xlThick;//设置右边线加粗 xSt.get_Range(excel.Cells,excel.Cells).Borders.Weight =XlBorderWeight.xlThick;//设置下边线加粗 // //显示效果 // excel.Visible=true; //xSt.Export(Server.MapPath(".")+"file://"+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML/); xBk.SaveCopyAs(Server.MapPath(".")+"file://"+this.xlfile.Text+".xls/ "); ds = null; xBk.Close(false, null,null); excel.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk); System.Runtime.InteropServices.Marshal.ReleaseComObject(excel); System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt); xBk = null; excel = null; xSt = null; GC.Collect(); string path = Server.MapPath(this.xlfile.Text+".xls"); System.IO.FileInfo file = new System.IO.FileInfo(path); Response.Clear(); Response.Charset="GB2312"; Response.ContentEncoding=System.Text.Encoding.UTF8; // 添加头信息，为"文件下载/另存为"对话框指定默认文件名 Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name)); // 添加头信息，指定文件大小，让浏览器能够显示下载进度 Response.AddHeader("Content-Length", file.Length.ToString()); // 指定返回的是一个不能被客户端读取的流，必须被下载 Response.ContentType = "application/ms-excel"; // 把文件流发送到客户端 Response.WriteFile(file.FullName); // 停止页面的执行 Response.End();}
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