User ID=Admin;Password=;">

sql server 与 excel 互导以及在asp.net中从DataTable导出到exce

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  asp.net|excel|server 

1.从excel直接读入数据库

insert into t_test ( 字段 )

select 字段 

FROM OpenDataSource( 'Microsoft.Jet.OLEDB.4.0',
'Data Source="C:\test.xls";
User ID=Admin;Password=;
Extended properties=Excel 8.0')...[sheet1$]

2.从数据库直接写入excel

exec master.. ' bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout c:\test.xls -c -S"soa" -U"sa" -P"sa" '   注意参数的大小写,另外这种方法写入数据

的时候没有标题

3.从DataTable导出到excel

  StringWriter stringWriter = new StringWriter();
   HtmlTextWriter htmlWriter = new HtmlTextWriter( stringWriter );
   DataGrid excel = new DataGrid();
   System.Web.UI.WebControls.TableItemStyle AlternatingStyle = new TableItemStyle();
   System.Web.UI.WebControls.TableItemStyle headerStyle = new TableItemStyle();
   System.Web.UI.WebControls.TableItemStyle itemStyle = new TableItemStyle();
   AlternatingStyle.BackColor = System.Drawing.Color.LightGray;
   headerStyle.BackColor =System.Drawing.Color.LightGray;
   headerStyle.Font.Bold = true;
   headerStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
   itemStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;; 

   excel.AlternatingItemStyle.MergeWith(AlternatingStyle);
   excel.HeaderStyle.MergeWith(headerStyle);
   excel.ItemStyle.MergeWith(itemStyle);
   excel.GridLines = GridLines.Both;
   excel.HeaderStyle.Font.Bold = true;
   excel.DataSource = dt.DefaultView;   //输出DataTable的内容
   excel.DataBind();
   excel.RenderControl(htmlWriter);
  
   string filestr = "d:\\data\\"+filePath;  //filePath是文件的路径
   int pos = filestr.LastIndexOf( "\\");
   string file = filestr.Substring(0,pos);
   if( !Directory.Exists( file ) )
   {
    Directory.CreateDirectory(file);
   }
   System.IO.StreamWriter sw = new StreamWriter(filestr);
   sw.Write(stringWriter.ToString());
   sw.Close();

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