private void RenameDep_Click(object sender, RoutedEventArgs e)
{
var dep = (tv.SelectedItem as TreeViewItem).DataContext;
RenameDep renameDep = new RenameDep(this, dep);
renameDep.Show();
}
private void RenameEmpl(object sender, RoutedEventArgs e)
{
//var dep = (Departament)employees_lv.DataContext;
//var dep = (tv.SelectedItem as TreeViewItem).DataContext;
var empl = employees_lv.SelectedItem;
RenameDep renameDep = new RenameDep(this, empl);
renameDep.Show();
}