sqlCmd = new OleDbCommand("SELECT COUNT(*) FROM Tgroup", cn);
cn.Open();
label1.Text = Convert.ToString((int)sqlCmd.ExecuteScalar());
cn.Close();
sqlCmd = new OleDbCommand("SELECT COUNT(*) FROM Tgroup", cn);
cn.Open();
label1.Text = Convert.ToString((int)sqlCmd.ExecuteScalar());
cn.Close();