Inserrt ScrollIntoViewBehavior to scroll the list box

src/CodeSculpt.Wpf/Behaviors/ScrollIntoViewBehavior.cs

@@ -0,0 +1,35 @@
+using System.Windows.Controls;
+using System.Windows.Threading;
+using Microsoft.Xaml.Behaviors;
+
+namespace CodeSculpt.Wpf.Behaviors;
+public class ScrollIntoViewBehavior : Behavior<ListBox>
+{
+    protected override void OnAttached()
+    {
+        base.OnAttached();
+        AssociatedObject.SelectionChanged += AssociatedObject_SelectionChanged;
+    }
+
+    private void AssociatedObject_SelectionChanged(object sender, SelectionChangedEventArgs e)
+    {
+        if (sender is not ListBox control)
+        {
+            return;
+        }
+
+        if (control.SelectedItem is not null)
+        {
+            control.Dispatcher.BeginInvoke(DispatcherPriority.Render, () =>
+            {
+                control.UpdateLayout();
+                control.ScrollIntoView(control.SelectedItem);
+            });
+        }
+    }
+    protected override void OnDetaching()
+    {
+        base.OnDetaching();
+        AssociatedObject.SelectionChanged -= AssociatedObject_SelectionChanged;
+    }
+}

src/CodeSculpt.Wpf/CodeSculpt.Wpf.csproj

@@ -27,6 +27,7 @@
 
 
     <ItemGroup>
+        <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.77" />
         <PackageReference Include="Nerdbank.GitVersioning" Version="3.6.133">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>