public override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var passwordbox = (sender as PasswordBox);
if (passwordbox == null)
{
return;
}
passwordbox.PasswordChanged -= Passwordbox_PasswordChanged;
if ((bool)e.NewValue)
{
HasTextProperty.SetValue(passwordbox);
passwordbox.PasswordChanged += Passwordbox_PasswordChanged;
}
}
private void Passwordbox_PasswordChanged(object sender, RoutedEventArgs e)
{
HasTextProperty.SetValue((PasswordBox)sender);
}