/// <summary>
/// Open a new course list window if not open; focus the window if open.
/// </summary>
/// <param name="sender">Target control that invoked this event</param>
/// <param name="e">Arguments passed to this event</param>
private void viewCoursesButton_Click(object sender, EventArgs e)
{
if (coursesWindow != null)
{
coursesWindow.Focus();
}
else
{
coursesWindow = new CourseListForm(this);
coursesWindow.Show();
}
}
/// <summary>
/// Clear the reference to the currently open course list window.
/// </summary>
public void ClearCoursesWindow()
{
coursesWindow = null;
}