public override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) //프로퍼티 변경이 발생했을때 어떻게 처리할 것이낙
{
var passwordBox = sender as PasswordBox;
if (passwordBox == null)
{
return;
}
passwordBox.PasswordChanged -= PasswordBox_PasswordChanged;
if ((bool)e.NewValue) //새로 변경된 값이 참이면
{
HasTextProperty.SetValue(passwordBox);
passwordBox.PasswordChanged += PasswordBox_PasswordChanged;
}
}
private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
{
HasTextProperty.SetValue((PasswordBox)sender);
}
