private void CreateItemViewModel(bool isCatalog)
{
if (m_current == null)
{
throw new ArgumentNullException(nameof(m_current));
}
OutlineBar.IsEnabled = false;
var catalog = m_current;
// 如果当前选中项是文档，需要找到其父节点，从父节点添加新章节。
if (catalog.Model is Fragment)
{
catalog = GetParent(m_root, catalog);
}
var it = new ItemDetailViewModel();
if (isCatalog)
{
it.InitChildren();
}
catalog.Children.Add(it);
m_general.InEdit = false;
m_general.BeginEdit(it.Title);
m_toAdd = it;
}
// 添加新作品。
private void AddNewBook_Click(object sender, RoutedEventArgs e)
{
Add.IsEnabled = false;
m_current = new BookViewModel();
m_list.Add(m_current);
m_general.InEdit = false;
m_general.BeginEdit(m_current.Title);
}