protected override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) { // Get the caller var passwordBox = sender as PasswordBox; // Make sure it is a password box if (passwordBox == null) { return; } // Remove any previous events passwordBox.PasswordChanged -= PasswordBox_PasswordChanged; // If the caller set MonitorPassword to true... if ((Boolean)e.NewValue) { // Set default value HasTextProperty.SetValue(passwordBox); // Start listening out for password changes passwordBox.PasswordChanged += PasswordBox_PasswordChanged; } }
private void PasswordBox_PasswordChanged(Object sender, RoutedEventArgs e) { // Set the attached HasText value HasTextProperty.SetValue((PasswordBox)sender); }