How to upload the excel file to server?

[varunkumarid]

Hi to everybody.

I am using C#.net for convert Excel file to DataGrid for Client Request.

When i using the page to convert the excel to datagrid at localhost it worked properly, but it will not work when i'm publish the site.

The error is
System.Data.Ole Db.OleDbExcepti on: The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data.

The Code is

protected void Upload_Click(object sender, EventArgs e)
        {
            try
            {
                strFileName = fleupForQuotation.PostedFile.FileName;
                if (strFileName.Trim() != "")
                {
                    string folderpath = "F://Upload//";
                    string attachedFile = fleupForQuotation.PostedFile.FileName;
                    if (Request.Browser.Browser == "IE")
                    {
                        fleupForQuotation.SaveAs(folderpath + fleupForQuotation.FileName);
                        strFileName = folderpath + fleupForQuotation.FileName;
                    }
                    else
                    {
                        fleupForQuotation.SaveAs(folderpath + attachedFile);
                        strFileName = folderpath + attachedFile;
                    }
                    hdnFileName.Value = strFileName;
                    

                }
                else
                {
                }
            }
            catch (Exception ex)
            {
                SRCMError.ErrorLog(ex.ToString());
                SRCMError.ExceptionToEventLog(ex);
            }


            
            string ConnectionString = "provider=Microsoft.Jet.OLEDB.4.0;" + @"data source=" + strFileName + ";" + "Extended Properties=Excel 8.0;";

            OleDbConnection conn = new OleDbConnection(ConnectionString);

            conn.Open();

            try
            {


                OleDbDataAdapter oda = new OleDbDataAdapter("select * from [Sheet1$]", conn);

                DataSet ds = new DataSet();

                oda.Fill(ds, "Details");

                grdExceltoGrid.DataSource = ds;

                grdExceltoGrid.DataBind();

            }

            catch (Exception ex)
            {

                Response.Write(ex.Message);

            }

            finally
            {

                conn.Close();

            }

        }