private void cbCourses_SelectedIndexChanged(object sender, EventArgs e)
{
// if choise course name
if (cbCourses.SelectedIndex > 0)
{
string courseName = cbCourses.SelectedItem.ToString();
// open new form with parametrs and get answer if any change
SeatPlan seatPlan = new SeatPlan(courses, courseName);
if (seatPlan.ShowDialog() == DialogResult.OK)
{
//Debug.WriteLine(seatPlan.Change.ToString());
// any changes
change = change || seatPlan.Change;
cbCourses.SelectedIndex = 0;
}
}
}