private void BtnReturn_Click(object sender, RoutedEventArgs e)
{
var window = new MainUserWindow();
window.Show();
this.Close();
}
private void BtnEnterSemester_Click(object sender, RoutedEventArgs e)
{
if (LbListSemester.SelectedItem != null)
{
var newWindow = new MainUserWindow();
newWindow.Owner = this;
newWindow.WindowStartupLocation = WindowStartupLocation.CenterOwner;
newWindow.Show();
this.Hide();
}
}