feat: add selection list.

demo/Ursa.Demo/Models/MenuKeys.cs

@@ -22,6 +22,7 @@ public static class MenuKeys
     public const string MenuKeyNumericUpDown = "NumericUpDown";
     public const string MenuKeyPagination = "Pagination";
     public const string MenuKeyRangeSlider = "RangeSlider";
+    public const string MenuKeySelectionList = "SelectionList";
     public const string MenuKeyTagInput = "TagInput";
     public const string MenuKeyTimeline = "Timeline";
     public const string MenuKeyTwoTonePathIcon = "TwoTonePathIcon";

demo/Ursa.Demo/Pages/SelectionBoxDemo.axaml

@@ -0,0 +1,15 @@
+<UserControl 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"
+             xmlns:vm="using:Ursa.Demo.ViewModels"
+             x:DataType="vm:SelectionListDemoViewModel"
+             x:CompileBindings="True"
+             mc:Ignorable="d" d:DesignWidth="800"
+             d:DesignHeight="450"
+             x:Class="Ursa.Demo.Pages.SelectionListDemo">
+    <StackPanel HorizontalAlignment="Left">
+        <u:SelectionList ItemsSource="{Binding Items}"></u:SelectionList>
+    </StackPanel>
+</UserControl>

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

@@ -0,0 +1,13 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Ursa.Demo.Pages;
+
+public partial class SelectionListDemo : UserControl
+{
+    public SelectionListDemo()
+    {
+        InitializeComponent();
+    }
+}

demo/Ursa.Demo/ViewModels/MainViewViewModel.cs

@@ -44,6 +44,7 @@ public class MainViewViewModel : ViewModelBase
             MenuKeys.MenuKeyNumericUpDown => new NumericUpDownDemoViewModel(),
             MenuKeys.MenuKeyPagination => new PaginationDemoViewModel(),
             MenuKeys.MenuKeyRangeSlider => new RangeSliderDemoViewModel(),
+            MenuKeys.MenuKeySelectionList => new SelectionListDemoViewModel(),
             MenuKeys.MenuKeyTagInput => new TagInputDemoViewModel(),
             MenuKeys.MenuKeyTimeline => new TimelineDemoViewModel(),
             MenuKeys.MenuKeyTwoTonePathIcon => new TwoTonePathIconDemoViewModel(),

demo/Ursa.Demo/ViewModels/MenuViewModel.cs

@@ -31,6 +31,7 @@ public class MenuViewModel: ViewModelBase
             new() { MenuHeader = "NumericUpDown", Key = MenuKeys.MenuKeyNumericUpDown, Status = "New" },
             new() { MenuHeader = "Pagination", Key = MenuKeys.MenuKeyPagination },
             new() { MenuHeader = "RangeSlider", Key = MenuKeys.MenuKeyRangeSlider, Status = "New"},
+            new() { MenuHeader = "Selection LIst", Key = MenuKeys.MenuKeySelectionList, Status = "New" },
             new() { MenuHeader = "TagInput", Key = MenuKeys.MenuKeyTagInput },
             new() { MenuHeader = "Theme Toggler", Key = MenuKeys.MenuKeyThemeToggler },
             new() { MenuHeader = "Timeline", Key = MenuKeys.MenuKeyTimeline, Status = "Updated" },

demo/Ursa.Demo/ViewModels/SelectionListDemoViewModel.cs

@@ -0,0 +1,17 @@
+using System.Collections.ObjectModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace Ursa.Demo.ViewModels;
+
+public class SelectionListDemoViewModel: ObservableObject
+{
+    public ObservableCollection<string> Items { get; set; }
+
+    public SelectionListDemoViewModel()
+    {
+        Items = new ObservableCollection<string>()
+        {
+            "Ding", "Otter", "Husky", "Mr. 17", "Cass"
+        };
+    }
+}