public override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
if (sender is PasswordBox passwordBox)
{
//Remove any previous evens
passwordBox.PasswordChanged -= PasswordBoxOnPasswordChanged;
//If the caller set MonitorPassword to true...
if (e.NewValue is bool flag && flag)
{
HasTextProperty.SetValue(passwordBox);
//start listening out for password changes
passwordBox.PasswordChanged += PasswordBoxOnPasswordChanged;
}
}
}
private void PasswordBoxOnPasswordChanged(object sender, RoutedEventArgs e)
{
HasTextProperty.SetValue((PasswordBox)sender);
}