Exemple #1
0
    private void Submit(object sender, EventArgs e)
    {
        if (comboBox1.SelectedIndex.Equals(0) || comboBox2.SelectedIndex.Equals(0) || comboBox3.SelectedIndex.Equals(0))
        {
            SystemManager.ShowMessageBox("Date, Month, and Year required, please fill them!", "Information", 1);
        }

        else
        {
            int visitorAge = comboBox3.SelectedIndex - DateTime.Now.Year;

            SystemManager.AddAge(visitorAge, Convert.ToString(DateTime.Now));
        }
    }