Question

I have a Grid in an ASP.NET page and I have an Export button. When the Export button is clicked it executes the method below and fills the Excel document with the data from the Grid. But it only fills it with data that is on Page 1. If I have 100 items and 10 pages it just does page one. I would think it would do all and not just the ones displayed. Any idea why it would do this?

Thanks

    private void fillDocument()
      {
        string lFilename = Leads.xls";
        string lDistributorFolder = Server.MapPath(".") + "\\Portals\\0\\Distributors\\" + _currentUser.UserID.ToString() + "\\";
        string lTemplateFolder = System.Configuration.ConfigurationManager.AppSettings["Templates"];
        System.IO.Directory.CreateDirectory(lDistributorFolder);

        File.Copy(lTemplateFolder + lFilename, lDistributorFolder + lFilename, true);
        string lConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + lDistributorFolder + "\\" + lFilename + ";Extended Properties=\"Excel 8.0;HDR=YES;\"";
        DbProviderFactory lFactory = DbProviderFactories.GetFactory("System.Data.OleDb");
        int lSequence = 0;

        using (DbConnection lConnection = lFactory.CreateConnection())
        {
            lConnection.ConnectionString = lConnectionString;
            lConnection.Open();

        foreach (GridDataItem lItem in grdLeadList.Items)
          {
            lSequence++;

            using (DbCommand lCommand = lConnection.CreateCommand())
              {
                   lCommand.CommandText = "INSERT INTO [Leads$] ";
                   lCommand.CommandText += "(F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,F13,F14,F15,F16,F17,F18,F19,F20,F21) ";
                   lCommand.CommandText += "VALUES(";
                   lCommand.CommandText += "\"" + lSequence.ToString() + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gLeadNumber].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gSource].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gAccountName].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gCreatedOn].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gContactFullName].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gPriority].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gStreet1].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gStreet2].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gZIP].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gCity].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += "\"" + lItem.Cells[_gState].Text.Replace(" ", " ") + "\",";
                   lCommand.CommandText += ")";
                   lCommand.ExecuteNonQuery();
                 }
              }

             lConnection.Close();
          }
}

Answer 1

Is the grid being used to edit or manipulate the data in any way? Generally it would be better to export the values from the data from which the grid is populated, not from the grid itself.

After all, if the grid has paging, then the actual grid being displayed contains only the single page of data. But the data source from which it is populated contains everything.

Export from the data source, not from the UI controls.