private void Add_Click(object sender, RoutedEventArgs e)
{
if (textBox.Text != "")
{
long id = _contentManager.AddTopic(textBox.Text, Convert.ToInt16(comboBox.SelectedValue));
if (id > 0)
{
_topics.Add(_contentManager.GetComponent(id) as Topic);
listBox.Items.Refresh();
_saved = false;
Confirm.IsEnabled = true;
_empty = false;
EditLessons.IsEnabled = true;
}
}
}
