private void Button1_Click(object sender, EventArgs e)
{
if (radioButton1.Checked)
{
PaidStudent paidStudent = new PaidStudent(textBox1.Text, Convert.ToByte(comboBox1.GetItemText(comboBox1.SelectedItem)), int.Parse(textBox2.Text));
StudentsList.add(paidStudent);
comboBox2.Items.Add(textBox1.Text);
}
else if (radioButton2.Checked)
{
StateStudent stateStudent = new StateStudent(textBox1.Text, Convert.ToByte(comboBox1.GetItemText(comboBox1.SelectedItem)), int.Parse(textBox2.Text));
StudentsList.add(stateStudent);
comboBox2.Items.Add(textBox1.Text);
}
}
private void Button3_Click(object sender, EventArgs e)
{
richTextBox1.Text = StudentsList.getAll();
}
private void Button2_Click(object sender, EventArgs e)
{
richTextBox1.Text = StudentsList.get(comboBox2.GetItemText(comboBox2.SelectedItem));
}