private void btnPing_Click(object sender, EventArgs e) { Double Init; Double Finale; customer = new VO.CustomersVO(); DialogResult dlg = MessageBox.Show("Do you wish to Ping this Account?\nThis will be Undone!", "Ping Interest", MessageBoxButtons.YesNo, MessageBoxIcon.Question); try { if (dlg == System.Windows.Forms.DialogResult.Yes) { customer.Custcode = dataGridView1.SelectedRows[0].Cells[0].Value.ToString(); Init = Convert.ToDouble(dataGridView1.SelectedRows[0].Cells[5].Value) * customer.getIR(); Finale = Convert.ToDouble(dataGridView1.SelectedRows[0].Cells[5].Value) + Init; customer.Balance = Finale; customer.PingInterest(); dataGridView1.SelectedRows[0].Cells[5].Value = Finale.ToString("#,###,##0.00"); btnPing.Enabled = false; } } catch (Exception) { MessageBox.Show("Ping Error", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }