public override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) { //get caller var passwordBox = sender as PasswordBox; //make sure it is passwordBox if (passwordBox == null) { return; } //remove previous events passwordBox.PasswordChanged -= PasswordBox_PasswordChanged; //if true listen out if ((bool)e.NewValue) { //set default value HasTextProperty.SetValue(passwordBox); passwordBox.PasswordChanged += PasswordBox_PasswordChanged; } }
private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e) { HasTextProperty.SetValue((PasswordBox)sender); }