asp.net里导出excel表方法汇总

1、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[0];

   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[i].Caption.ToString()+”\t”;

    colHeaders +=dt.Columns[i].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[i].ToString() + “\t”;

     ls_item += row[i].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、使用微软的C＋＋写的ACTIVEX控件：http://download.microsoft.com/download/OfficeXPDev/sample/1.0/WIN98MeXP/EN-US/Dsoframerctl.exe

3、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.ms-excel/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);

4、这个用dataview ，代码好长

public 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[4,colIndex] = col.ColumnName;

    xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[4,colIndex]).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[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString(“yyyy-MM-dd”);

      xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).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[rowIndex,colIndex] = “’”+row[col.ColumnName].ToString();

      xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐

     }

     else

     {

      excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString();

     }

    }

   }

   //

   //加载一个合计行

   //

   int rowSum = rowIndex + 1;

   int colSum = 2;

   excel.Cells[rowSum,2] = “合计”;

   xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;

   //

   //设置选中的部分的颜色

   //

   xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Select();

   xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).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[2,2] = str;

   //

   //设置整个报表的标题格式

   //

   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Bold = true;

   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Size = 22;

   //

   //设置报表表格为最适应宽度

   //

   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Select();

   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Columns.AutoFit();

   //

   //设置整个报表的标题为跨列居中

   //

   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).Select();

   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;

   //

   //绘制边框

   //

   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1;

   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗

   xSt.get_Range(excel.Cells[4,2],excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置上边线加粗

   xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗

   xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗

   //

   //显示效果

   //

   excel.Visible=true;

//xSt.Export(Server.MapPath(“.”)+”\\”+this.xlfile.Text+”.xls”,SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML);

xBk.SaveCopyAs(Server.MapPath(“.”)+”\\”+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();

}