Add blank ObservableValidator sample page

Author: Sergio0694

samples/MvvmSample.Core/ViewModels/ObservableValidatorPageViewModel.cs

@@ -0,0 +1,23 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using CommunityToolkit.Mvvm.ComponentModel;
+using MvvmSample.Core.Services;
+
+namespace MvvmSample.Core.ViewModels;
+
+public partial class ObservableValidatorPageViewModel : SamplePageViewModel
+{
+    public ObservableValidatorPageViewModel(IFilesService filesService)
+        : base(filesService)
+    {
+    }
+
+    public ObservableForm Form { get; } = new();
+
+    public partial class ObservableForm : ObservableValidator
+    {
+
+    }
+}

samples/MvvmSampleUwp/App.xaml.cs

@@ -55,6 +55,7 @@ protected override void OnLaunched(LaunchActivatedEventArgs e)
                 .AddTransient<IocPageViewModel>()
                 .AddTransient<MessengerPageViewModel>()
                 .AddTransient<ObservableObjectPageViewModel>()
+                .AddTransient<ObservableValidatorPageViewModel>()
                 .AddTransient<RelayCommandPageViewModel>()
                 .AddTransient<SamplePageViewModel>()
                 .BuildServiceProvider());

samples/MvvmSampleUwp/MvvmSampleUwp.csproj

@@ -139,6 +139,9 @@
     <Compile Include="Views\BuildingTheUIPage.xaml.cs">
       <DependentUpon>BuildingTheUIPage.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Views\ObservableValidatorPage.xaml.cs">
+      <DependentUpon>ObservableValidatorPage.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Views\RedditServicePage.xaml.cs">
       <DependentUpon>RedditServicePage.xaml</DependentUpon>
     </Compile>
@@ -291,6 +294,10 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </Page>
+    <Page Include="Views\ObservableValidatorPage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="Views\RedditServicePage.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>

samples/MvvmSampleUwp/Shell.xaml

@@ -61,6 +61,11 @@
                             Content="ObservableObject"
                             Icon="Sort"
                             ToolTipService.ToolTip="A base class for observable objects, with built-in support for INotifyPropertyChanged." />
+                        <muxc:NavigationViewItem
+                            x:Name="ObservableValidatorItem"
+                            Content="ObservableValidator"
+                            Icon="AllApps"
+                            ToolTipService.ToolTip="A base class for validator objects, with built-in support for INotifyDataErrorInfo." />
                         <muxc:NavigationViewItem
                             Content="Commands"
                             Icon="Calendar"

samples/MvvmSampleUwp/Shell.xaml.cs

@@ -30,6 +30,7 @@ public Shell()
         {
             new SampleEntry(IntroductionItem, typeof(IntroductionPage)),
             new SampleEntry(ObservableObjectItem, typeof(ObservableObjectPage), "ObservableObject", "observable inotify property changed propertychanging changing"),
+            new SampleEntry(ObservableValidatorItem, typeof(ObservableValidatorPage), "ObservableValidator", "observable form validation validate data error inotify property changed propertychanging changing"),
             new SampleEntry(CommandsItem, typeof(RelayCommandPage), "RelayCommand and RelayCommand<T>", "commands icommand relaycommand binding"),
             new SampleEntry(AsyncCommandsItem, typeof(AsyncRelayCommandPage), "AsyncRelayCommand and AsyncRelayCommand<T>", "asynccommands icommand relaycommand binding asynchronous"),
             new SampleEntry(MessengerItem, typeof(MessengerPage), "Messenger and IMessenger", "messenger messaging message receiver recipient"),

samples/MvvmSampleUwp/Views/ObservableValidatorPage.xaml

@@ -0,0 +1,14 @@
+<Page
+    x:Class="MvvmSampleUwp.Views.ObservableValidatorPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    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"
+    NavigationCacheMode="Enabled"
+    mc:Ignorable="d">
+
+    <ScrollViewer Padding="{StaticResource DocumentationPageContentPadding}" CanContentRenderOutsideBounds="True">
+        <StackPanel Spacing="16">
+        </StackPanel>
+    </ScrollViewer>
+</Page>

samples/MvvmSampleUwp/Views/ObservableValidatorPage.xaml.cs

@@ -0,0 +1,24 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using CommunityToolkit.Mvvm.DependencyInjection;
+using MvvmSample.Core.ViewModels;
+using Windows.UI.Xaml.Controls;
+
+namespace MvvmSampleUwp.Views;
+
+/// <summary>
+/// An empty page that can be used on its own or navigated to within a Frame.
+/// </summary>
+public sealed partial class ObservableValidatorPage : Page
+{
+    public ObservableValidatorPage()
+    {
+        this.InitializeComponent();
+
+        DataContext = Ioc.Default.GetRequiredService<ObservableValidatorPageViewModel>();
+    }
+
+    public ObservableValidatorPageViewModel ViewModel => (ObservableValidatorPageViewModel)DataContext;
+}