InfoMan: simplify code by using new C# features

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications.Test/ViewModels/ContactListViewModelTest.cs

@@ -13,11 +13,7 @@ public class ContactListViewModelTest : AddressBookTest
     public void PropertiesTest()
     {
         var viewModel = Get<ContactListViewModel>();
-        var contacts = new List<Contact>()
-        {
-            new(),
-            new()
-        };
+        var contacts = new List<Contact>() { new(), new() };
 
         Assert.IsNull(viewModel.Contacts);
         viewModel.Contacts = contacts;

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications/Controllers/ContactController.cs

@@ -25,7 +25,7 @@ public ContactController(IShellService shellService, ContactLayoutViewModel cont
         ContactListViewModel = contactListViewModel;
         ContactViewModel = contactViewModel;
         NewContactCommand = new DelegateCommand(NewContact);
-        deleteContactCommand = new DelegateCommand(DeleteContact, CanDeleteContact);
+        deleteContactCommand = new(DeleteContact, CanDeleteContact);
     }
 
     public AddressBookRoot Root { get; set; } = null!;
@@ -40,7 +40,7 @@ public ContactController(IShellService shellService, ContactLayoutViewModel cont
 
     public void Initialize()
     {
-        contactsView = new ObservableListView<Contact>(Root!.Contacts, null, ContactListViewModel.Filter, null);
+        contactsView = new(Root!.Contacts, null, ContactListViewModel.Filter, null);
         ContactListViewModel.Contacts = contactsView;
         ContactListViewModel.DeleteContactCommand = DeleteContactCommand;
         WeakEvent.PropertyChanged.Add(ContactListViewModel, ContactListViewModelPropertyChanged);
@@ -60,7 +60,7 @@ public void Shutdown()
 
     private void NewContact()
     {
-        Contact newContact = Root.AddNewContact();
+        var newContact = Root.AddNewContact();
         ContactListViewModel.SelectedContact = newContact;
         ContactListViewModel.FocusItem();
     }

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications/Controllers/ModuleController.cs

@@ -33,7 +33,7 @@ public ModuleController(IShellService shellService, IDocumentService documentSer
         this.navigationService = navigationService;
         this.contactControllerFactory = contactControllerFactory;
         this.selectContactControllerFactory = selectContactControllerFactory;
-        serializer = new Lazy<DataContractSerializer>(CreateDataContractSerializer);
+        serializer = new(CreateDataContractSerializer);
     }
 
     internal AddressBookRoot Root { get; private set; } = null!;
@@ -44,7 +44,7 @@ public void Initialize()
         {
             if (stream.Length == 0)
             {
-                Root = new AddressBookRoot();
+                Root = new();
                 foreach (var x in SampleDataProvider.CreateContacts()) Root.AddContact(x);
             }
             else Root = (AddressBookRoot)serializer.Value.ReadObject(stream)!;
@@ -80,7 +80,7 @@ private void ShowAddressBook()
 
         var uiNewContactCommand = new ToolBarCommand(activeContactController.NewContactCommand, "_New contact", "Creates a new contact.");
         var uiDeleteCommand = new ToolBarCommand(activeContactController.DeleteContactCommand, "_Delete", "Deletes the selected contact.");
-        shellService.AddToolBarCommands(new[] { uiNewContactCommand, uiDeleteCommand });
+        shellService.AddToolBarCommands([ uiNewContactCommand, uiDeleteCommand ]);
     }
 
     private void CloseAddressBook()

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications/Controllers/SelectContactController.cs

@@ -19,7 +19,7 @@ public SelectContactController(SelectContactViewModel selectContactViewModel, Co
     {
         this.selectContactViewModel = selectContactViewModel;
         ContactListViewModel = contactListViewModel;
-        selectContactCommand = new DelegateCommand(SelectContact, CanSelectContact);
+        selectContactCommand = new(SelectContact, CanSelectContact);
     }
 
     public object OwnerView { get; set; } = null!;
@@ -32,7 +32,7 @@ public SelectContactController(SelectContactViewModel selectContactViewModel, Co
 
     public void Initialize()
     {
-        contactsView = new ObservableListView<Contact>(Root.Contacts, null, ContactListViewModel.Filter, null);
+        contactsView = new(Root.Contacts, null, ContactListViewModel.Filter, null);
         ContactListViewModel.Contacts = contactsView;
         ContactListViewModel.SelectedContact = Root.Contacts.FirstOrDefault();
         selectContactViewModel.ContactListView = ContactListViewModel.View;

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications/DtoFactory.cs

@@ -5,6 +5,6 @@ namespace Waf.InformationManager.AddressBook.Modules.Applications;
 
 internal static class DtoFactory
 {
-    [return: NotNullIfNotNull("contact")]
-    public static ContactDto? ToDto(this Contact? contact) => contact != null ? new ContactDto(contact.Firstname, contact.Lastname, contact.Email) : null;
+    [return: NotNullIfNotNull(nameof(contact))]
+    public static ContactDto? ToDto(this Contact? contact) => contact != null ? new(contact.Firstname, contact.Lastname, contact.Email) : null;
 }

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Applications/SampleData/SampleDataProvider.cs

@@ -6,18 +6,13 @@ namespace Waf.InformationManager.AddressBook.Modules.Applications.SampleData;
 [GeneratedCode("ToSuppressCodeAnalysis", "1.0.0.0")]
 public static class SampleDataProvider
 {
-    public static IReadOnlyList<Contact> CreateContacts()
-    {
-        var contacts = new List<Contact>()
-        {
-            CreateContact("Jesper", "Aaberg", "jesper.aaberg@example.com", "(111) 555-0100", "A. Datum Corporation", "Main St. 4567", "Buffalo", "New York", "98052", "United States"),
-            CreateContact("Lori", "Penor", "lori.penor@fabrikam.com", "(111) 555-0104", "Baldwin Museum of Science", "Front St. 3598", "Seattle", "Washington", "12345", "United States"),
-            CreateContact("Michael", "Pfeiffer", "michael.pfeiffer@fabrikam.com", "(222) 555-0105", "Blue Yonder Airlines", "Front St. 1234", "Seattle", "Washington", "12345", "United States"),
-            CreateContact("Terry", "Adams", "terry.adams@adventure-works.com", "(333) 555-0102", "Adventure Works", "Main St. 789", "Buffalo", "New York", "98052", "United States"),
-            CreateContact("Miles", "Reid", "miles.reid@adventure-works.com", "(444) 555-0123", "Adventure Works", "22nd St NE 349", "Miami", "Florida", "98052", "United States")
-        };
-        return contacts;
-    }
+    public static IReadOnlyList<Contact> CreateContacts() => [
+        CreateContact("Jesper", "Aaberg", "jesper.aaberg@example.com", "(111) 555-0100", "A. Datum Corporation", "Main St. 4567", "Buffalo", "New York", "98052", "United States"),
+        CreateContact("Lori", "Penor", "lori.penor@fabrikam.com", "(111) 555-0104", "Baldwin Museum of Science", "Front St. 3598", "Seattle", "Washington", "12345", "United States"),
+        CreateContact("Michael", "Pfeiffer", "michael.pfeiffer@fabrikam.com", "(222) 555-0105", "Blue Yonder Airlines", "Front St. 1234", "Seattle", "Washington", "12345", "United States"),
+        CreateContact("Terry", "Adams", "terry.adams@adventure-works.com", "(333) 555-0102", "Adventure Works", "Main St. 789", "Buffalo", "New York", "98052", "United States"),
+        CreateContact("Miles", "Reid", "miles.reid@adventure-works.com", "(444) 555-0123", "Adventure Works", "22nd St NE 349", "Miami", "Florida", "98052", "United States")
+    ];
 
     private static Contact CreateContact(string firstname, string lastname, string email, string phone, string company, string street, string city, string state, string postalCode, string country)
     {

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Domain.Test/AddressBookRootTest.cs

@@ -16,13 +16,13 @@ public void AddAndRemoveContacts()
         Assert.IsFalse(root.Contacts.Any());
 
         var contact1 = root.AddNewContact();
-        AssertHelper.SequenceEqual(new[] { contact1 }, root.Contacts);
+        AssertHelper.SequenceEqual([ contact1 ], root.Contacts);
 
         var contact2 = new Contact();
         root.AddContact(contact2);
-        AssertHelper.SequenceEqual(new[] { contact1, contact2 }, root.Contacts);
+        AssertHelper.SequenceEqual([ contact1, contact2 ], root.Contacts);
 
         root.RemoveContact(contact1);
-        AssertHelper.SequenceEqual(new[] { contact2 }, root.Contacts);
+        AssertHelper.SequenceEqual([ contact2 ], root.Contacts);
     }
 }

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Domain/AddressBookRoot.cs

@@ -7,12 +7,7 @@ namespace Waf.InformationManager.AddressBook.Modules.Domain;
 public class AddressBookRoot : ValidatableModel
 {
     [DataMember]
-    private readonly ObservableList<Contact> contacts;
-
-    public AddressBookRoot()
-    {
-        contacts = new();
-    }
+    private readonly ObservableList<Contact> contacts = [];
 
     public IReadOnlyList<Contact> Contacts => contacts;
 

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Presentation/Views/ContactListView.xaml.cs

@@ -16,7 +16,7 @@ public partial class ContactListView : IContactListView
     public ContactListView()
     {
         InitializeComponent();
-        viewModel = new Lazy<ContactListViewModel>(() => ViewHelper.GetViewModel<ContactListViewModel>(this)!);
+        viewModel = new(() => ViewHelper.GetViewModel<ContactListViewModel>(this)!);
         Loaded += LoadedHandler;
     }
 
@@ -30,13 +30,13 @@ public void FocusItem()
             return;
         }
 
-        Dispatcher.BeginInvoke(DispatcherPriority.Background, (Action)(() =>
+        Dispatcher.BeginInvoke(DispatcherPriority.Background, () =>
         {
             // It is necessary to delay this code because data binding updates the values asynchronously.
             contactsBox.ScrollIntoView(ViewModel.SelectedContact);
             var selectedListBoxItem = (ListBoxItem)contactsBox.ItemContainerGenerator.ContainerFromItem(ViewModel.SelectedContact);
             selectedListBoxItem?.Focus();
-        }));
+        });
     }
 
     private void LoadedHandler(object sender, RoutedEventArgs e)

src/System.Waf/Samples/InformationManager/AddressBook.Modules.Presentation/Views/SelectContactWindow.xaml.cs

@@ -16,7 +16,7 @@ public partial class SelectContactWindow : ISelectContactView
     public SelectContactWindow()
     {
         InitializeComponent();
-        viewModel = new Lazy<SelectContactViewModel>(() => ViewHelper.GetViewModel<SelectContactViewModel>(this)!);
+        viewModel = new(() => ViewHelper.GetViewModel<SelectContactViewModel>(this)!);
     }
 
     public SelectContactViewModel ViewModel => viewModel.Value;

src/System.Waf/Samples/InformationManager/Assembler/App.xaml.cs

@@ -34,7 +34,7 @@ private static readonly (string loggerNamePattern, LogLevel minLevel)[] logSetti
 
     private AggregateCatalog? catalog;
     private CompositionContainer? container;
-    private IEnumerable<IModuleController> moduleControllers = Array.Empty<IModuleController>();
+    private IEnumerable<IModuleController> moduleControllers = [];
 
     public App()
     {
@@ -81,7 +81,7 @@ protected override void OnStartup(StartupEventArgs e)
         // Load module assemblies as well. See App.config file.
         foreach (var x in Settings.Default.ModuleAssemblies) catalog.Catalogs.Add(new AssemblyCatalog(x));
 
-        container = new CompositionContainer(catalog, CompositionOptions.DisableSilentRejection);
+        container = new(catalog, CompositionOptions.DisableSilentRejection);
         var batch = new CompositionBatch();
         batch.AddExportedValue(container);
         container.Compose(batch);

src/System.Waf/Samples/InformationManager/Common.Applications.Test/ApplicationsTest.cs

@@ -21,7 +21,7 @@ protected override void OnInitialize()
 
         OnCatalogInitialize(catalog);
 
-        Container = new CompositionContainer(catalog, CompositionOptions.DisableSilentRejection);
+        Container = new(catalog, CompositionOptions.DisableSilentRejection);
         var batch = new CompositionBatch();
         batch.AddExportedValue(Container);
         Container.Compose(batch);

src/System.Waf/Samples/InformationManager/EmailClient.Modules.Applications.Test/ViewModels/EmailListViewModelTest.cs

@@ -13,11 +13,7 @@ public class EmailListViewModelTest : EmailClientTest
     public void PropertiesTest()
     {
         var viewModel = Get<EmailListViewModel>();
-        var emails = new List<Email>()
-            {
-                new(),
-                new(),
-            };
+        var emails = new List<Email>() { new(), new() };
 
         Assert.IsNull(viewModel.SelectedEmail);
         AssertHelper.PropertyChangedEvent(viewModel, x => x.SelectedEmail, () => viewModel.SelectedEmail = emails[0]);

src/System.Waf/Samples/InformationManager/EmailClient.Modules.Applications.Test/ViewModels/NewEmailViewModelTest.cs

@@ -16,11 +16,7 @@ public void PropertiesTest()
 
         // Email accounts tests
 
-        var emailAccounts = new List<EmailAccount>()
-        {
-            new(),
-            new()
-        };
+        var emailAccounts = new List<EmailAccount>() { new(), new() };
 
         AssertHelper.PropertyChangedEvent(viewModel, x => x.SelectedEmailAccount, () => viewModel.SelectedEmailAccount = emailAccounts[0]);
         Assert.AreEqual(emailAccounts[0], viewModel.SelectedEmailAccount);
@@ -41,24 +37,24 @@ public void PropertiesTest()
         string cc = cc1 + ", " + cc2;
         AssertHelper.PropertyChangedEvent(viewModel, x => x.CC, () => viewModel.CC = cc);
         Assert.AreEqual(cc1 + "; " + cc2, viewModel.CC);
-        AssertHelper.SequenceEqual(new[] { cc1, cc2 }, email.CC);
+        AssertHelper.SequenceEqual([ cc1, cc2 ], email.CC);
 
         string bcc1 = "user@adventure-works.com";
         string bcc2 = "harry@example.com";
         string bcc3 = "admin@adventure-works.com";
         string bcc = bcc1 + "; " + bcc2 + "  " + bcc3;
         AssertHelper.PropertyChangedEvent(viewModel, x => x.Bcc, () => viewModel.Bcc = bcc);
         Assert.AreEqual(bcc1 + "; " + bcc2 + "; " + bcc3, viewModel.Bcc);
-        AssertHelper.SequenceEqual(new[] { bcc1, bcc2, bcc3 }, email.Bcc);
+        AssertHelper.SequenceEqual([ bcc1, bcc2, bcc3 ], email.Bcc);
 
         string newEmail = "mike@adventure-works.com";
-        AssertHelper.PropertyChangedEvent(viewModel, x => x.To, () => email.To = new[] { newEmail });
+        AssertHelper.PropertyChangedEvent(viewModel, x => x.To, () => email.To = [ newEmail ]);
         Assert.AreEqual(newEmail, viewModel.To);
 
-        AssertHelper.PropertyChangedEvent(viewModel, x => x.CC, () => email.CC = new[] { newEmail });
+        AssertHelper.PropertyChangedEvent(viewModel, x => x.CC, () => email.CC = [ newEmail ]);
         Assert.AreEqual(newEmail, viewModel.CC);
 
-        AssertHelper.PropertyChangedEvent(viewModel, x => x.Bcc, () => email.Bcc = new[] { newEmail });
+        AssertHelper.PropertyChangedEvent(viewModel, x => x.Bcc, () => email.Bcc = [ newEmail ]);
         Assert.AreEqual(newEmail, viewModel.Bcc);
 
         viewModel.Email = new Email();

src/System.Waf/Samples/InformationManager/EmailClient.Modules.Applications/Controllers/EditEmailAccountController.cs

@@ -29,8 +29,8 @@ public EditEmailAccountController(EditEmailAccountViewModel editEmailAccountView
         this.basicEmailAccountViewModel = basicEmailAccountViewModel;
         this.pop3SettingsViewModelFactory = pop3SettingsViewModelFactory;
         this.exchangeSettingsViewModelFactory = exchangeSettingsViewModelFactory;
-        backCommand = new DelegateCommand(Back, CanBack);
-        nextCommand = new DelegateCommand(Next, CanNext);
+        backCommand = new(Back, CanBack);
+        nextCommand = new(Next, CanNext);
     }
 
     public object OwnerWindow { get; set; } = null!;

src/System.Waf/Samples/InformationManager/EmailClient.Modules.Applications/Controllers/EmailAccountsController.cs

@@ -33,8 +33,8 @@ public EmailAccountsController(IShellService shellService, ExportFactory<EditEma
 
     private void ShowEmailAccounts()
     {
-        removeEmailAccountCommand = new DelegateCommand(RemoveEmailAccount, CanRemoveEmailAccount);
-        editEmailAccountCommand = new DelegateCommand(EditEmailAccount, CanEditEmailAccount);
+        removeEmailAccountCommand = new(RemoveEmailAccount, CanRemoveEmailAccount);
+        editEmailAccountCommand = new(EditEmailAccount, CanEditEmailAccount);
 
         emailAccountsViewModel = emailAccountsViewModelFactory.CreateExport().Value;
         emailAccountsViewModel.EmailClientRoot = Root;

src/System.Waf/Samples/InformationManager/EmailClient.Modules.Applications/Controllers/EmailFolderController.cs

@@ -25,7 +25,7 @@ public EmailFolderController(IShellService shellService, EmailLayoutViewModel em
         this.emailLayoutViewModel = emailLayoutViewModel;
         EmailListViewModel = emailListViewModel;
         EmailViewModel = emailViewModel;
-        deleteEmailCommand = new DelegateCommand(DeleteEmail, CanDeleteEmail);
+        deleteEmailCommand = new(DeleteEmail, CanDeleteEmail);
     }
 
     public EmailFolder EmailFolder { get; set; } = null!;
@@ -38,7 +38,7 @@ public EmailFolderController(IShellService shellService, EmailLayoutViewModel em
 
     public void Initialize()
     {
-        emailsView = new ObservableListView<Email>(EmailFolder.Emails, null, EmailListViewModel.Filter, x => x.OrderByDescending(y => y.Sent));
+        emailsView = new(EmailFolder.Emails, null, EmailListViewModel.Filter, x => x.OrderByDescending(y => y.Sent));
         EmailListViewModel.Emails = emailsView;
         EmailListViewModel.DeleteEmailCommand = DeleteEmailCommand;
         emailListViewModelPropertyChangedProxy = WeakEvent.PropertyChanged.Add(EmailListViewModel, EmailListViewModelPropertyChanged);