fix(UpdateAllAsync): Implement simple type update with UpdateAllAsync in the most usable way to get

as string does not implement any KeyEquatable we can not use UpdateItemAsync but this way we don't have to not use Updating at all which would mean to fallback to Remove and Add the item instead

Author: DevTKSS

src/DevTKSS.Uno.MvuxListApp/Presentation/MainModel.cs

@@ -5,7 +5,7 @@ namespace DevTKSS.Uno.MvuxListApp.Presentation;
 public partial record MainModel
 {
     private readonly ILogger _logger;
-    private INavigator _navigator;
+    private readonly INavigator _navigator;
     private readonly IRouteNotifier _routeNotifier;
     public MainModel(
         IOptions<AppConfig> appInfo,
@@ -19,36 +19,34 @@ public MainModel(
         _logger = logger;
     }
 
-
-
     public IState<string> Title => State<string>.Value(this, () => _navigator.Route?.ToString() ?? string.Empty);
+    private async void Main_OnRouteChanged(object? sender, RouteChangedEventArgs e)
+    {
+        await Title.SetAsync(e.Navigator?.Route?.ToString());
+    }
 
-    private async ValueTask<IImmutableList<string>> GetMembersAsync(CancellationToken ct)
-        => _listMembers;
-
+    #region MembersView-Value
     private readonly IImmutableList<string> _listMembers = ImmutableList.Create(
         [
             "Hans",
             "Lisa",
             "Anke",
             "Tom"
         ]);
-    private async void Main_OnRouteChanged(object? sender, RouteChangedEventArgs e)
-    {
-        await Title.SetAsync(e.Navigator?.Route?.ToString());
-    }
 
-    public IListState<string> DashboardList => ListState<string>.Async(this,GetMembersAsync)
-                                                                .Selection(SelectedMember);
+    private async ValueTask<IImmutableList<string>> GetMembersAsync(CancellationToken ct)
+        => _listMembers;
 
-    public IState<string> SelectedMember => State<string>.Value(this,() => string.Empty);
+    public IListState<string> Members => ListState<string>.Async(this, GetMembersAsync)
+                                                          .Selection(SelectedMember);
 
+    public IState<string> SelectedMember => State<string>.Value(this, () => string.Empty);
+#endregion
     public IState<string> ModifiedMemberName => State<string>.Empty(this);
-                                                             //.ForEach(RenameMemberAsync);
 
     public async ValueTask RenameMemberAsync(
-        [FeedParameter(nameof(ModifiedMemberName))]string? modName,
-        [FeedParameter(nameof(SelectedMember))]string? replaceMember,
+        [FeedParameter(nameof(ModifiedMemberName))] string? modName,
+        [FeedParameter(nameof(SelectedMember))] string? replaceMember,
         CancellationToken ct)
     {
 
@@ -57,12 +55,13 @@ public async ValueTask RenameMemberAsync(
         if (string.IsNullOrWhiteSpace(modName))
             return;
 
-        await DashboardList.UpdateAllAsync(
+        await Members.UpdateAllAsync(
             match: item => item == replaceMember,
             updater: _ => modName,
             ct: ct
         );
 
-        await DashboardList.TrySelectAsync(modName, ct);
+        await Members.TrySelectAsync(modName, ct);
     }
+
 }

src/DevTKSS.Uno.MvuxListApp/Presentation/MainPage.xaml

@@ -7,32 +7,40 @@
       xmlns:um="using:Uno.Material"
       NavigationCacheMode="Required"
       Background="{ThemeResource BackgroundBrush}">
-  <ScrollViewer IsTabStop="True">
+  <ScrollViewer>
+    <!-- #region MembersView -->
     <Grid utu:SafeArea.Insets="VisibleBounds">
+
       <Grid.RowDefinitions>
         <RowDefinition Height="Auto" />
         <RowDefinition />
       </Grid.RowDefinitions>
+
       <utu:NavigationBar Content="{Binding Title}" />
 
       <StackPanel Grid.Row="1"
                   HorizontalAlignment="Center"
                   VerticalAlignment="Center"
                   Spacing="16">
 
-        <TextBlock Grid.Row="1"
-                 HorizontalAlignment="Center"
-                 TextAlignment="Center"
-                 Text="{Binding Path=SelectedMember,Mode=OneWay}" />
+        <TextBlock x:Name="SelectedMemberTextBlock"
+                   HorizontalAlignment="Center"
+                   TextAlignment="Center"
+                   Text="{Binding Path=SelectedMember, Mode=OneWay}" />
+
+        <ListView x:Name="MembersListView"
+                  HorizontalAlignment="Center"
+                  MinWidth="200"
+                  ItemsSource="{Binding Path=Members}" />
 
-        <ListView HorizontalAlignment="Center" MinWidth="200" Grid.Row="2"
-                  ItemsSource="{Binding DashboardList}" />
+        <TextBox x:Name="ModifiableMemberNameBox"
+                 PlaceholderText="Change the Name of the selected Member:"
+                 Text="{Binding Path=ModifiedMemberName, Mode=TwoWay}"/>
 
-        <TextBox PlaceholderText="Change the Name of the selected Member:"
-                 Text="{Binding ModifiedMemberName, Mode=TwoWay}"/>
         <Button Content="Change Name"
                 Command="{Binding Path=RenameMemberAsync}" />
       </StackPanel>
     </Grid>
+    <!-- #endregion -->
   </ScrollViewer>
 </Page>

src/DevTKSS.Uno.SimpleMemberSelectionApp/Presentation/DashboardModel.cs

@@ -17,8 +17,8 @@ public DashboardModel()
 
     public IState<string> DashboardTitle => State<string>.Value(this, () => "Hallo vom Dashboard");
 
-    public IListState<string> DashboardList => ListState.Async(this, GetMembers)
-                                                        .Selection(SelectedMember);
+    public IListState<string> Members => ListState.Async(this, GetMembers)
+                                                   .Selection(SelectedMember);
 
     public IState<string> SelectedMember => State<string>.Empty(this);
 }