commit: temporarily use TextBox

demo/Ursa.Demo/Pages/IPv4BoxDemo.axaml

@@ -0,0 +1,15 @@
+<UserControl
+    x:Class="Ursa.Demo.Pages.IPv4BoxDemo"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:u="https://irihi.tech/ursa"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    mc:Ignorable="d">
+    <StackPanel>
+        <TextBlock />
+        <u:IPv4Box Width="500" />
+    </StackPanel>
+</UserControl>

demo/Ursa.Demo/Pages/IPv4BoxDemo.axaml.cs

@@ -0,0 +1,18 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Ursa.Demo.Pages;
+
+public partial class IPv4BoxDemo : UserControl
+{
+    public IPv4BoxDemo()
+    {
+        InitializeComponent();
+    }
+
+    private void InitializeComponent()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+}

demo/Ursa.Demo/Views/MainWindow.axaml

@@ -29,6 +29,9 @@
             <TabItem Header="Banner">
                 <pages:BannerDemo />
             </TabItem>
+            <TabItem Header="IPv4Box">
+                <pages:IPv4BoxDemo />
+            </TabItem>
         </TabControl>
     </Grid>