Add data in DataGridview then Insert into Database

private void btnSave_Click(object sender, EventArgs e)
       {
           int chkLoop;

           try
           {
               chkLoop = dataGridView1.Rows.Count;
               //chkLoop = chkLoop - 1;
               MessageBox.Show(chkLoop.ToString());
               foreach (DataGridViewRow row in dataGridView1.Rows)
               {
                   //MessageBox.Show(chkLoop.ToString());
                   //MessageBox.Show(row.co.ToString());
                   if (chkLoop != 0)
                   {
                       db.command.Parameters.Add("@ItemCode", SqlDbType.VarChar).Value = row.Cells["Category Code"].Value.ToString();
                       db.command.Parameters.Add("@ItemName", SqlDbType.VarChar).Value = row.Cells["Category"].Value.ToString();
                       //MessageBox.Show("" + row.Cells["Category Code"].Value.ToString());
                       db.Adapter("sp_NewItem", true);
                       chkLoop = chkLoop - 1;

                   }
               }
               MessageBox.Show("New Item added successfully.", "Successfully done", MessageBoxButtons.OK, MessageBoxIcon.Information);
               db.Adapter("select ItemName as [Item Name] from NewItem", "dt");
               dataGridPreviousList.DataSource = db.dataSet.Tables["dt"];
               //dataGridPreviousList.DataSource = db.Adapter("select ItemName as [Item Name] from NewItem");
           }
           catch (Exception err)
           {
               MessageBox.Show(err.Message);
           }
       }