private void OK3_Click(object sender, EventArgs e) { if (textBox1.Text.Length < 0) { MessageBox.Show("please enter valid number to pay"); } else { paymentApprovel PA = new paymentApprovel(); PA.Show(); this.Hide(); } }
private void OK5_Click(object sender, EventArgs e) { DateTime Now = DateTime.Now; string s1 = ExpDateData.Text.Substring(3); string s2 = ExpDateData.Text.Substring(0, 2); int year = Convert.ToInt32(s1); int month = Convert.ToInt32(s2); int nowMonth = Convert.ToInt32(Now.Month); int nowYear = Convert.ToInt32(Now.Year) - 2000; if (year < nowYear) { MessageBox.Show("Credit Card is expired"); return; } if (year == nowYear && month < nowMonth) { MessageBox.Show("Credit Card is expired"); return; } if (OwnerNameData.Text.Length == 0) { MessageBox.Show("Please enter Owner Name"); return; } if (SumToPayData.Text.Length <= 0) { MessageBox.Show("Please enter amount to pay"); return; } if (CVVData.Text.Length != 3) { MessageBox.Show("Please enter a valid CVV number"); return; } if (credirCardNumData.Text.Length != 15) { MessageBox.Show("Please enter a valid credit card number"); return; } else { paymentApprovel PA = new paymentApprovel(); PA.Show(); this.Hide(); } }