public override void OnValueUpdated(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var password = d as PasswordBox;
if (password == null)
{
return;
}
password.PasswordChanged -= Password_PasswordChanged;
if ((bool)e.NewValue)
{
HasTextAttachedProperty.SetValue(password, password.Password.Length > 0);
password.PasswordChanged += Password_PasswordChanged;
}
}
private void Password_PasswordChanged(object sender, RoutedEventArgs e)
{
HasTextAttachedProperty.SetValue((PasswordBox)sender, ((PasswordBox)sender).Password.Length > 0);
}
