installed prism

App.xaml

@@ -1,10 +1,10 @@
-<Application
+<dryIoc:PrismApplication
     x:Class="ModernWpfPlayground.App"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:local="clr-namespace:ModernWpfPlayground"
     xmlns:ui="http://schemas.modernwpf.com/2019"
-    StartupUri="MainWindow.xaml">
+    xmlns:dryIoc="http://prismlibrary.com/">
     <Application.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
@@ -29,4 +29,4 @@
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </Application.Resources>
-</Application>
+</dryIoc:PrismApplication>

App.xaml.cs

@@ -1,9 +1,22 @@
-namespace ModernWpfPlayground
+using System.Windows;
+using Prism.Ioc;
+
+namespace ModernWpfPlayground
 {
     /// <summary>
     /// Interaction logic for App.xaml
     /// </summary>
     public partial class App
     {
+        protected override void RegisterTypes(IContainerRegistry containerRegistry)
+        {
+            containerRegistry.Register<MainWindow>();
+            containerRegistry.Register<WindowViewModel>();
+        }
+
+        protected override Window CreateShell()
+        {
+            return Container.Resolve<MainWindow>();
+        }
     }
 }

MainWindow.xaml

@@ -11,14 +11,12 @@
     Title="{Binding Title}"
     Width="1200"
     Height="600"
+    d:DataContext="{d:DesignInstance local:WindowViewModel}"
     ui:TitleBar.ExtendViewIntoTitleBar="True"
     ui:WindowHelper.UseModernWindowStyle="True"
     TextOptions.TextFormattingMode="Display"
     UseLayoutRounding="True"
     mc:Ignorable="d">
-    <Window.DataContext>
-        <local:WindowViewModel />
-    </Window.DataContext>
     <Window.Resources>
         <local:PixelsToGridLengthConverter x:Key="PixelsToGridLength" />
     </Window.Resources>

MainWindow.xaml.cs

@@ -5,9 +5,10 @@
     /// </summary>
     public partial class MainWindow
     {
-        public MainWindow()
+        public MainWindow(WindowViewModel viewModel)
         {
             InitializeComponent();
+            DataContext = viewModel;
         }
     }
 }

ModernWpfPlayground.csproj

@@ -9,6 +9,8 @@
 
   <ItemGroup>
     <PackageReference Include="ModernWpfUI" Version="0.8.1" />
+    <PackageReference Include="Prism.DryIoc" Version="7.2.0.1422" />
+    <PackageReference Include="Prism.Wpf" Version="7.2.0.1422" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.0" />
   </ItemGroup>