Is it possible to read data of excel sheet(.xls) from client-side without uploading it onto server

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Hello,

Is it possible ??????????

There is a requirement of upload data*** from excel file(.XLS). But i don't want to upload that .xls file on the server, and read data from it.

I want to read that file which resides on client-side and after confirmation, i want to directly update the values from that xls file into database without uploading that xls file from server.

no physical movement of file is required from client-to server.

I think this is possible, but i don't know how to do this,

I know how to upload file and read it from server.

Please guide me in this regard....

I am a gold fan :-) of codeproject developers and contributors

Thanks in advance

Indrajeet Sutar

.NET Web Developer

indrajeet.sutar@gmail.com
inder2305@gmail.com

Posted 22-Dec-09 1:33am

Indrajeet Sutar

Updated 22-Dec-09 19:07pm

v3

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2 solutions

Solution 2

My answer is a little more lenghty but here it is. It has it's advantages along with disadvantages.
It assumes a class named FieldsHere that
maps the excel columns, and the DB columns as well. Of course you need
to adapt it. You could also use an OleDbDataAdapter to fill a DataSet.

string connString = "Provider=Microsoft.Jet.OLEDB.4.0;" +
               "Data Source=" + FileNameHere + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\";";

           OleDbConnection con = new OleDbConnection(connString);

           OleDbCommand cmd = new OleDbCommand();
           cmd.Connection = con;
           cmd.CommandText = "SELECT Field1Here,Field2Here,Field3Here "+
               "FROM [sheetNameHere$] ORDER BY Field1Here ASC";
           OleDbDataReader dr = null;

           try
           {
               con.Open();
               dr = cmd.ExecuteReader();

               while (dr.Read())
               {
                   c = new FieldsHerre();
                   c.Field1Here= dr.IsDBNull(0) ? "Empty" : dr.GetString(0);
                    c.Field2Here= dr.IsDBNull(1) ? "Empty" : dr.GetString(1);
                    c.Field3Here= dr.IsDBNull(2) ? "Empty" : dr.GetString(2);

                    datas.Add(c);
                   //datas is a List<FieldsHere>
               }
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message);
           }
           finally
           {
               if (!dr.IsClosed)
               {
                   dr.Close();
               }
               dr.Dispose();
               if (con.State != ConnectionState.Closed)
               {
                   con.Close();
               }
               con.Dispose();
               con = null;
           }
           return datas;
       }

Posted 22-Dec-09 13:15pm

Dan Mos

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Aman Bhullar · Accepted Answer · 2009-12-22T02:03:00

you can try the

 <script language="javascript">
  function readFromExcel()
  {
  var excel = new ActiveXObject("Excel.Application");
  var excel_file = excel.Workbooks.Open("C:\\Book2.xls");
  var excel_sheet = excel_file.Worksheets("Sheet1");
  return data;
  }
  </script>
<body>
  <input type="button" onclick=readFromExcel() value="read"/>
</body>

Also you can refer to msdn link
http://channel9.msdn.com/forums/TechOff/414414-Help-with-reading-from-an-excel-file-using-javascript/[^]