The problem of exporting hidden lines into word

public void Export_Data_To_Word(DataGridView DGV, string filename)
  {
      if (DGV.Rows.Count != 0)
      {
          int RowCount = DGV.Rows.Count;
          int ColumnCount = DGV.Columns.Count;
          Object[,] DataArray = new object[RowCount + 1, ColumnCount + 1];

          //add rows
          int r = 0;
          for (int c = 0; c <= ColumnCount - 1; c++)
          {
              for (r = 0; r <= RowCount - 1; r++)
              {
                  DataArray[r, c] = DGV.Rows[r].Cells[c].Value;
              } //end row loop
          } //end column loop

          Word.Document oDoc = new Word.Document();
          oDoc.Application.Visible = true;

          //page orientation
          oDoc.PageSetup.Orientation = Word.WdOrientation.wdOrientLandscape;

          dynamic oRange = oDoc.Content.Application.Selection.Range;
          string oTemp = "";
          for (r = 0; r <= RowCount - 1; r++)
          {
              for (int c = 0; c <= ColumnCount - 1; c++)
              {
                  oTemp = oTemp + DataArray[r, c] + "\t";

              }
          }

          //table format
          oRange.Text = oTemp;

          object Separator = Word.WdTableFieldSeparator.wdSeparateByTabs;
          object ApplyBorders = true;
          object AutoFit = true;
          object AutoFitBehavior = Word.WdAutoFitBehavior.wdAutoFitContent;

          oRange.ConvertToTable(ref Separator, ref RowCount, 
                                     ref ColumnCount,
                                Type.Missing, Type.Missing, 
                                     ref ApplyBorders,
                                Type.Missing, Type.Missing, Type.Missing,
                                Type.Missing, Type.Missing, Type.Missing,
                                Type.Missing, ref AutoFit, 
                                     ref AutoFitBehavior, Type.Missing);

          oRange.Select();

          oDoc.Application.Selection.Tables[1].Select();
          oDoc.Application.Selection.Tables[1].Rows.AllowBreakAcrossPages = 0;
          oDoc.Application.Selection.Tables[1].Rows.Alignment = 0;
          oDoc.Application.Selection.Tables[1].Rows[1].Select();
          oDoc.Application.Selection.InsertRowsAbove(1);
          oDoc.Application.Selection.Tables[1].Rows[1].Select();

          //header row style
          oDoc.Application.Selection.Tables[1].Rows[1].Range.Bold = 1;
          oDoc.Application.Selection.Tables[1].Rows[1].Range.Font.Name = 
           "Tahoma";
          oDoc.Application.Selection.Tables[1].Rows[1].Range.Font.Size = 14;

          //add header row manually
          for (int c = 0; c <= ColumnCount - 1; c++)
          {
              oDoc.Application.Selection.Tables[1].Cell
                   (1, c + 1).Range.Text = DGV.Columns[c].HeaderText;
          }

          //table style 
          oDoc.Application.Selection.Tables[1].Rows[1].Select();
          oDoc.Application.Selection.Cells.VerticalAlignment = 
              Word.WdCellVerticalAlignment.wdCellAlignVerticalCenter;

          //header text
          foreach (Word.Section section in 
                   oDoc.Application.ActiveDocument.Sections)
          {
              Word.Range headerRange =        
      section.Headers[Word.WdHeaderFooterIndex.wdHeaderFooterPrimary].Range;
              headerRange.Fields.Add(headerRange, 
                 Word.WdFieldType.wdFieldPage);
              headerRange.Text = "your header text";
              headerRange.Font.Size = 16;
              headerRange.ParagraphFormat.Alignment = 
                 Word.WdParagraphAlignment.wdAlignParagraphCenter;
          }

          //save the file
          oDoc.SaveAs2(filename);
      }
  }

private void ComboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    using (OleDbConnection conn = new OleDbConnection
          (@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source = 
           siniflisteleri25.accdb; 
           Jet OLEDB:Database Password = Fatih2541; Mode = ReadWrite"))
    {
        string query = "SELECT tcno,ono,isim,soyisim,cinsiyet,sinifi,
        dtarihi,atel,btel from ogrencibilgileri25 where 
        sinifi='" + ComboBox1.Text + " '";

        OleDbCommand command = new OleDbCommand(query, conn);
        conn.Open();
        var adapter = new OleDbDataAdapter(command);
        var table = new System.Data.DataTable();
        adapter.Fill(table);
        dataGridView3.Columns["tcno"].Visible = tcnochk.Checked;
        dataGridView3.Columns["dtarihi"].Visible = dogchk.Checked;
        dataGridView3.Columns["dtarihi"].Visible = dogchk.Checked;
        dataGridView3.Columns["atel"].Visible = atelchk.Checked;
        dataGridView3.Columns["btel"].Visible = btelchk.Checked;
        dataGridView3.DataSource = table;
        conn.Close();
    }
}