completed the branch

src/Shared/HandyControlDemo_Shared/UserControl/Controls/PinBoxDemoCtl.xaml

@@ -4,6 +4,9 @@
              xmlns:hc="https://handyorg.github.io/handycontrol"
              Background="{DynamicResource RegionBrush}">
     <hc:TransitioningContentControl>
-        <hc:PinBox Length="6"/>
+        <StackPanel Margin="32" VerticalAlignment="Center" hc:PinBox.Completed="PinBox_OnCompleted">
+            <hc:PinBox Length="4" Password="1234"/>
+            <hc:PinBox Length="6" Password="123456" Margin="0,16,0,0" PasswordChar="❤"/>
+        </StackPanel>
     </hc:TransitioningContentControl>
 </UserControl>