asp.net导入excel转为datatable

1 前台代码：

  
    

   
     
   
     <
   
     asp:FileUpload runat
   
     =
   
     "
   
     server
   
     "
   
      ID
   
     =
   
     "
   
     fupFiles
   
     "
   
      Width
   
     =
   
     "
   
     300px
   
     "
   
      
   
     />
   
     
excel表名
   
     <
   
     asp:TextBox ID
   
     =
   
     "
   
     txtSheet
   
     "
   
      runat
   
     =
   
     "
   
     server
   
     "
   
     >
   
     Sheet1
   
     </
   
     asp:TextBox
   
     >
   
     


   
     //
   
     表名为excel左下角的表名,默认为sheet1,sheet2,...
  
    

 

2 后台：

 string excelName = txtSheet.Text; 

 string excelPath=  fupFiles.PostedFile.FileName;

 string strConn;

 strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=Excel 8.0;";

 OleDbConnection conn = new OleDbConnection(strConn);

 OleDbDataAdapter oada = new OleDbDataAdapter ( "select * from [" + sheetname + "$]", strConn );

 DataTable dt = new DataTable();

 try {

       oada.Fill(dt);//获得datatable

  }

  catch( Exception ex) {      }