private void button3_Click(object sender, EventArgs e) { _range = "A" + (Convert.ToInt32(textBox1.Text) - 1).ToString() + ":J" + textBox2.Text; OdbcConnection cn = new OdbcConnection(); cn.ConnectionString = string.Format(@"Driver={{Microsoft Excel Driver (*.xls)}};DBQ={0};ReadOnly=0;", label1.Text); string strCom = "select * from [" + _sheet + "$" + _range + "]"; cn.Open(); OdbcCommand comm_mon = new OdbcCommand(strCom, cn); OdbcDataAdapter da = new OdbcDataAdapter(); da.SelectCommand = comm_mon; System.Data.DataTable dt = new System.Data.DataTable(); da.Fill(dt); DataSaver ds = new DataSaver(login_, password_); ds.SavePaymentsPlan(dt); }