Code cleanup and try to use the RowDetailsTemplate

src/App.axaml.cs

@@ -1,4 +1,3 @@
-using Avalonia;
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Markup.Xaml;
 

src/DiscoveredDeviceViewModel.cs

@@ -1,48 +1,56 @@
-using System.Drawing;
+namespace SddpViewer;
-using System.Linq;
 
-namespace SddpViewer
+using System;
+using System.Threading.Tasks;
+
+using CommunityToolkit.Mvvm.ComponentModel;
+
+using Rssdp;
+
+public partial class DiscoveredDeviceViewModel : ObservableObject
 {
-    using System;
+    private readonly DiscoveredSsdpDevice _device;
-    using System.Threading.Tasks;
-
-    using CommunityToolkit.Mvvm.ComponentModel;
-
-    using Rssdp;
-
-    public partial class DiscoveredDeviceViewModel : ObservableObject
-    {
-        private readonly DiscoveredSsdpDevice device;
 
     public DiscoveredDeviceViewModel(DiscoveredSsdpDevice device)
     {
-            this.device = device;
+        _device = device;
+        ResponseHeader = GetResponseHeader();
     }
 
+    private string GetResponseHeader()
+    {
+        return string.Join(
+            "," + Environment.NewLine,
+            _device.ResponseHeaders.Select(x => $"{{{x.Key} : {string.Join(";", x.Value)}}}")
+        );
+    }
+
+    public string ResponseHeader { get; }
+
     /// <summary>
     /// Sets or returns the type of notification, being either a uuid, device type, service type or upnp:rootdevice.
     /// </summary>
-        public string NotificationType => this.device.NotificationType;
+    public string NotificationType => _device.NotificationType;
 
     /// <summary>
     /// Sets or returns the universal service name (USN) of the device.
     /// </summary>
-        public string Usn => this.device.Usn;
+    public string Usn => _device.Usn;
 
     /// <summary>
     /// Sets or returns a URL pointing to the device description document for this device.
     /// </summary>
-        public Uri DescriptionLocation => this.device.DescriptionLocation;
+    public Uri DescriptionLocation => _device.DescriptionLocation;
 
     /// <summary>
     /// Sets or returns the length of time this information is valid for (from the <see cref="P:Rssdp.DiscoveredSsdpDevice.AsAt" /> time).
     /// </summary>
-        public TimeSpan CacheLifetime => this.device.CacheLifetime;
+    public TimeSpan CacheLifetime => _device.CacheLifetime;
 
     /// <summary>
     /// Sets or returns the date and time this information was received.
     /// </summary>
-        public DateTimeOffset AsAt => this.device.AsAt;
+    public DateTimeOffset AsAt => _device.AsAt;
 
     [ObservableProperty]
     private string _friendlyName = "";
@@ -54,16 +62,14 @@ namespace SddpViewer
     private Uri? _presentationUrl;
 
     [ObservableProperty]
-        private string _modelNumber;
+    private string _modelNumber = "";
 
     public async Task GetFurtherInformationAsync()
     {
-            var ssdpDevice = await this.device.GetDeviceInfo().ConfigureAwait(false);
+        var ssdpDevice = await _device.GetDeviceInfo().ConfigureAwait(false);
         FriendlyName = ssdpDevice.FriendlyName;
-            Icon = ssdpDevice.Icons.MinBy(x=> x.Height);
+        Icon = ssdpDevice.Icons.MinBy(x => x.Height);
         PresentationUrl = ssdpDevice.PresentationUrl;
         ModelNumber = ssdpDevice.ModelNumber;
-
-        }
     }
 }

src/GlobalUsings.cs

@@ -0,0 +1,3 @@
+// Global using directives
+
+global using Avalonia;

src/MainWindow.axaml

@@ -1,25 +1,25 @@
 <Window
-    Title="SDDP viewer"
-    d:DesignHeight="450"
-    d:DesignWidth="800"
-    mc:Ignorable="d"
     x:Class="SddpViewer.MainWindow"
-    x:CompileBindings="True"
-    x:DataType="sddpViewer:MainWindowViewModel"
     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:sddpViewer="clr-namespace:SddpViewer"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    Title="SDDP viewer"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    x:CompileBindings="True"
+    x:DataType="sddpViewer:MainWindowViewModel"
+    mc:Ignorable="d">
     <Window.DataContext>
         <sddpViewer:MainWindowViewModel />
     </Window.DataContext>
-    <Grid RowDefinitions="Auto, *">
+    <Grid ColumnDefinitions="*,*" RowDefinitions="Auto, *">
         <StackPanel Margin="10" Spacing="5">
             <TextBlock Text="Device IP Address" />
             <ComboBox
-                DisplayMemberBinding="{Binding DisplayName}"
                 HorizontalAlignment="Stretch"
+                DisplayMemberBinding="{Binding DisplayName}"
                 ItemsSource="{Binding NetworkAdapters}"
                 SelectedItem="{Binding SelectedNetworkAdapter}" />
             <TextBlock Text="Notification filter" />
@@ -27,10 +27,22 @@
             <Button Command="{Binding SearchDevicesNowCommand}" Content="Search now" />
         </StackPanel>
         <DataGrid
-            AutoGenerateColumns="True"
+            Grid.Row="1" Grid.ColumnSpan="2"
-            Grid.Row="1"
+            Grid.Column="0"
+            AutoGenerateColumns="False"
             IsReadOnly="True"
             ItemsSource="{Binding SddpDevices}">
+            <DataGrid.Columns>
+                <DataGridTextColumn Binding="{Binding Usn}" Header="Usn" />
+                <DataGridTextColumn Binding="{Binding FriendlyName}" Header="Name" />
+            </DataGrid.Columns>
+            <DataGrid.RowDetailsTemplate>
+                <DataTemplate DataType="sddpViewer:DiscoveredDeviceViewModel">
+                    <StackPanel>
+                        <TextBlock Text="{Binding ResponseHeader}" />
+                    </StackPanel>
+                </DataTemplate>
+            </DataGrid.RowDetailsTemplate>
         </DataGrid>
     </Grid>
 </Window>

src/MainWindowViewModel.cs

@@ -1,11 +1,7 @@
-using System;
+namespace SddpViewer;
-using System.Collections.Generic;
-using System.Linq;
 
 using Avalonia.Threading;
 
-namespace SddpViewer;
-
 using System.Collections.ObjectModel;
 using System.Threading.Tasks;
 
@@ -14,7 +10,7 @@ using CommunityToolkit.Mvvm.Input;
 
 using Rssdp;
 
-public partial class MainWindowViewModel : ObservableObject
+public sealed partial class MainWindowViewModel : ObservableObject, IDisposable
 {
     public MainWindowViewModel()
     {
@@ -24,9 +20,11 @@ public partial class MainWindowViewModel : ObservableObject
 
     private void LocatorOnDeviceUnavailable(object? sender, DeviceUnavailableEventArgs e)
     {
-        var existingDevice = SddpDevices.FirstOrDefault(x =>
+        var existingDevice = SddpDevices.FirstOrDefault(
-            string.Equals(x.Usn, e.DiscoveredDevice.Usn, StringComparison.Ordinal));
+            x => string.Equals(x.Usn, e.DiscoveredDevice.Usn, StringComparison.Ordinal)
-        if(existingDevice is null) return;
+        );
+        if (existingDevice is null)
+            return;
         Dispatcher.UIThread.Invoke(() => SddpDevices.Remove(existingDevice));
     }
 
@@ -79,4 +77,9 @@ public partial class MainWindowViewModel : ObservableObject
         _locator.StartListeningForNotifications();
         await _locator.SearchAsync();
     }
+
+    public void Dispose()
+    {
+        _locator?.Dispose();
+    }
 }

src/NetworkAdapter.cs

@@ -1,5 +1,3 @@
-using System.Collections.Generic;
-using System.Linq;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Net.Sockets;

src/Program.cs

@@ -1,9 +1,6 @@
-using Avalonia;
+namespace SddpViewer;
-using System;
 
-namespace SddpViewer;
+internal static class Program
-
-class Program
 {
     // Initialization code. Don't use any Avalonia, third-party APIs or any
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized

src/SddpViewer.csproj

@@ -3,6 +3,7 @@
     <OutputType>WinExe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
     <ApplicationManifest>app.manifest</ApplicationManifest>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>