private void button1_Click(object sender, EventArgs e) { timer1.Start(); if (radioButton1.Checked) { if (radioButton1.Text == qb[i].ANS) { total += qb[i].MARKS; } } else if (radioButton2.Checked) { if (radioButton2.Text == qb[i].ANS) { total += qb[i].MARKS; } } else if (radioButton3.Checked) { if (radioButton3.Text == qb[i].ANS) { total += qb[i].MARKS; } } else if (radioButton4.Checked) { if (radioButton4.Text == qb[i].ANS) { total += qb[i].MARKS; } } i++; if (i == 5) { // MessageBox.Show("Congrats!!! You have got " + total + " marks"); // if (MessageBox.Show("This will close down the whole application. Confirm?", "Close Application", MessageBoxButtons.YesNo) == DialogResult.Yes) // { this.Hide(); timer1.Stop(); // MessageBox.Show("The application has been closed successfully.", "Application Closed!", MessageBoxButtons.OK); //System.Windows.Forms.Application.Exit(); Form4 f4 = new Form4(this); f4.Show(); // } //else { i = 0; // total = 0; } } try { label1.Text = (qb[i]).ID; radioButton1.Text = (qb[i]).OPTION1; radioButton2.Text = (qb[i]).OPTION2; radioButton3.Text = (qb[i]).OPTION3; radioButton4.Text = (qb[i]).OPTION4; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; val = 0; } catch (Exception ex) { Application.Exit(); } }