.NET 8 to main

1_CS/LINQ/DataLib/DataLib.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

1_CS/LINQ/DataLib/Formula1.cs

@@ -5,47 +5,47 @@ public static class Formula1
     private static List<Racer>? s_racers;
     public static IList<Racer> GetChampions() => s_racers ??= InitializeRacers();
 
-    private static List<Racer> InitializeRacers() => new()
-    {
-        new("Nino", "Farina", "Italy", 33, 5, new[] { 1950 }, new[] { "Alfa Romeo" }),
-        new("Alberto", "Ascari", "Italy", 32, 13, new[] { 1952, 1953 }, new[] { "Ferrari" }),
-        new("Juan Manuel", "Fangio", "Argentina", 51, 24, new int[] { 1951, 1954, 1955, 1956, 1957 }, new string[] { "Alfa Romeo", "Maserati", "Mercedes", "Ferrari" }),
-        new("Mike", "Hawthorn", "UK", 45, 3, new int[] { 1958 }, new string[] { "Ferrari" }),
-        new("Phil", "Hill", "USA", 48, 3, new int[] { 1961 }, new string[] { "Ferrari" }),
-        new("John", "Surtees", "UK", 111, 6, new int[] { 1964 }, new string[] { "Ferrari" }),
-        new("Jim", "Clark", "UK", 72, 25, new int[] { 1963, 1965 }, new string[] { "Lotus" }),
-        new("Jack", "Brabham", "Australia", 125, 14, new int[] { 1959, 1960, 1966 }, new string[] { "Cooper", "Brabham" }),
-        new("Denny", "Hulme", "New Zealand", 112, 8, new int[] { 1967 }, new string[] { "Brabham" }),
-        new("Graham", "Hill", "UK", 176, 14, new int[] { 1962, 1968 }, new string[] { "BRM", "Lotus" }),
-        new("Jochen", "Rindt", "Austria", 60, 6, new int[] { 1970 }, new string[] { "Lotus" }),
-        new("Jackie", "Stewart", "UK", 99, 27, new int[] { 1969, 1971, 1973 }, new string[] { "Matra", "Tyrrell" }),
-        new("Emerson", "Fittipaldi", "Brazil", 144, 14, new int[] { 1972, 1974 }, new string[] { "Lotus", "McLaren" }),
-        new("James", "Hunt", "UK", 92, 10, new int[] { 1976 }, new string[] { "McLaren" }),
-        new("Mario", "Andretti", "USA", 128, 12, new int[] { 1978 }, new string[] { "Lotus" }),
-        new("Jody", "Scheckter", "South Africa", 112, 10, new int[] { 1979 }, new string[] { "Ferrari" }),
-        new("Alan", "Jones", "Australia", 116, 12, new int[] { 1980 }, new string[] { "Williams" }),
-        new("Keke", "Rosberg", "Finland", 114, 5, new int[] { 1982 }, new string[] { "Williams" }),
-        new("Niki", "Lauda", "Austria", 171, 25, new int[] { 1975, 1977, 1984 }, new string[] { "Ferrari", "McLaren" }),
-        new("Nelson", "Piquet", "Brazil", 204, 23, new int[] { 1981, 1983, 1987 }, new string[] { "Brabham", "Williams" }),
-        new("Ayrton", "Senna", "Brazil", 161, 41, new int[] { 1988, 1990, 1991 }, new string[] { "McLaren" }),
-        new("Nigel", "Mansell", "UK", 187, 31, new int[] { 1992 }, new string[] { "Williams" }),
-        new("Alain", "Prost", "France", 199, 51, new int[] { 1985, 1986, 1989, 1993 }, new string[] { "McLaren", "Williams" }),
-        new("Damon", "Hill", "UK", 115, 22, new int[] { 1996 }, new string[] { "Williams" }),
-        new("Jacques", "Villeneuve", "Canada", 163, 11, new int[] { 1997 }, new string[] { "Williams" }),
-        new("Mika", "Hakkinen", "Finland", 161, 20, new int[] { 1998, 1999 }, new string[] { "McLaren" }),
-        new("Michael", "Schumacher", "Germany", 306, 91, new int[] { 1994, 1995, 2000, 2001, 2002, 2003, 2004 }, new string[] { "Benetton", "Ferrari" }),
-        new("Fernando", "Alonso", "Spain", 370, 32, new int[] { 2005, 2006 }, new string[] { "Renault" }),
-        new("Kimi", "Räikkönen", "Finland", 349, 21, new int[] { 2007 }, new string[] { "Ferrari" }),
-        new("Jenson", "Button", "UK", 306, 16, new int[] { 2009 }, new string[] { "Brawn GP" }),
-        new("Sebastian", "Vettel", "Germany", 299, 53, new int[] { 2010, 2011, 2012, 2013 }, new string[] { "Red Bull Racing" }),
-        new("Nico", "Rosberg", "Germany", 206, 24, new int[] { 2016 }, new string[] { "Mercedes" }),
-        new("Lewis", "Hamilton", "UK", 322, 103, new int[] { 2008, 2014, 2015, 2017, 2018, 2019, 2020 }, new string[] { "McLaren", "Mercedes" }),
-        new("Max", "Verstappen", "Netherlands", 175, 45, new int[] { 2021, 2022 }, new string[] { "Red Bull Racing" })
-    };
+    private static List<Racer> InitializeRacers() =>
+    [
+        new("Nino", "Farina", "Italy", 33, 5, [1950], ["Alfa Romeo"]),
+        new("Alberto", "Ascari", "Italy", 32, 13, [1952, 1953], ["Ferrari"]),
+        new("Juan Manuel", "Fangio", "Argentina", 51, 24, [1951, 1954, 1955, 1956, 1957], ["Alfa Romeo", "Maserati", "Mercedes", "Ferrari"]),
+        new("Mike", "Hawthorn", "UK", 45, 3, [1958], ["Ferrari"]),
+        new("Phil", "Hill", "USA", 48, 3, [1961], ["Ferrari"]),
+        new("John", "Surtees", "UK", 111, 6, [1964], ["Ferrari"]),
+        new("Jim", "Clark", "UK", 72, 25, [1963, 1965], ["Lotus"]),
+        new("Jack", "Brabham", "Australia", 125, 14, [1959, 1960, 1966], ["Cooper", "Brabham"]),
+        new("Denny", "Hulme", "New Zealand", 112, 8, [1967], ["Brabham"]),
+        new("Graham", "Hill", "UK", 176, 14, [1962, 1968], ["BRM", "Lotus"]),
+        new("Jochen", "Rindt", "Austria", 60, 6, [1970], ["Lotus"]),
+        new("Jackie", "Stewart", "UK", 99, 27, [1969, 1971, 1973], ["Matra", "Tyrrell"]),
+        new("Emerson", "Fittipaldi", "Brazil", 144, 14, [1972, 1974], ["Lotus", "McLaren"]),
+        new("James", "Hunt", "UK", 92, 10, [1976], ["McLaren"]),
+        new("Mario", "Andretti", "USA", 128, 12, [1978], ["Lotus"]),
+        new("Jody", "Scheckter", "South Africa", 112, 10, [1979], ["Ferrari"]),
+        new("Alan", "Jones", "Australia", 116, 12, [1980], ["Williams"]),
+        new("Keke", "Rosberg", "Finland", 114, 5, [1982], ["Williams"]),
+        new("Niki", "Lauda", "Austria", 171, 25, [1975, 1977, 1984], ["Ferrari", "McLaren"]),
+        new("Nelson", "Piquet", "Brazil", 204, 23, [1981, 1983, 1987], ["Brabham", "Williams"]),
+        new("Ayrton", "Senna", "Brazil", 161, 41, [1988, 1990, 1991], ["McLaren"]),
+        new("Nigel", "Mansell", "UK", 187, 31, [1992], ["Williams"]),
+        new("Alain", "Prost", "France", 199, 51, [1985, 1986, 1989, 1993], ["McLaren", "Williams"]),
+        new("Damon", "Hill", "UK", 115, 22, [1996], ["Williams"]),
+        new("Jacques", "Villeneuve", "Canada", 163, 11, [1997], ["Williams"]),
+        new("Mika", "Hakkinen", "Finland", 161, 20, [1998, 1999], ["McLaren"]),
+        new("Michael", "Schumacher", "Germany", 306, 91, [1994, 1995, 2000, 2001, 2002, 2003, 2004], ["Benetton", "Ferrari"]),
+        new("Fernando", "Alonso", "Spain", 404, 32, [2005, 2006], ["Renault"]),
+        new("Kimi", "Räikkönen", "Finland", 349, 21, [2007], ["Ferrari"]),
+        new("Jenson", "Button", "UK", 306, 16, [2009], ["Brawn GP"]),
+        new("Sebastian", "Vettel", "Germany", 299, 53, [2010, 2011, 2012, 2013], ["Red Bull Racing"]),
+        new("Nico", "Rosberg", "Germany", 206, 24, [2016], ["Mercedes"]),
+        new("Lewis", "Hamilton", "UK", 335, 105, [2008, 2014, 2015, 2017, 2018, 2019, 2020], ["McLaren", "Mercedes"]),
+        new("Max", "Verstappen", "Netherlands", 209, 63, [2021, 2022, 2023, 2024], ["Red Bull Racing"])
+    ];
 
     private static List<Team>? s_teams;
-    public static IList<Team> GetConstructorChampions() => s_teams ??= new()
-    {
+    public static IList<Team> GetConstructorChampions() => s_teams ??=
+    [
         new("Vanwall", 1958),
         new("Cooper", 1959, 1960),
         new("BRM", 1962),
@@ -55,17 +55,17 @@ public static class Formula1
         new("Lotus", 1963, 1965, 1968, 1970, 1972, 1973, 1978),
         new("Benetton", 1995),
         new("Williams", 1980, 1981, 1986, 1987, 1992, 1993, 1994, 1996, 1997),
-        new("McLaren", 1974, 1984, 1985, 1988, 1989, 1990, 1991, 1998),
+        new("McLaren", 1974, 1984, 1985, 1988, 1989, 1990, 1991, 1998, 2024),
         new("Renault", 2005, 2006),
         new("Ferrari", 1961, 1964, 1975, 1976, 1977, 1979, 1982, 1983, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008),
         new("Brawn GP", 2009),
-        new("Red Bull Racing", 2010, 2011, 2012, 2013, 2022),
+        new("Red Bull Racing", 2010, 2011, 2012, 2013, 2022, 2023),
         new("Mercedes", 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
-    };
+    ];
 
     private static List<Championship>? s_championships;
-    public static IEnumerable<Championship> GetChampionships() => s_championships ??= new()
-    {
+    public static IEnumerable<Championship> GetChampionships() => s_championships ??=
+    [
         new(1950, "Nino Farina", "Juan Manuel Fangio", "Luigi Fagioli"),
         new(1951, "Juan Manuel Fangio", "Alberto Ascari", "Froilan Gonzalez"),
         new(1952, "Alberto Ascari", "Nino Farina", "Piero Taruffi"),
@@ -139,11 +139,13 @@ public static class Formula1
         new(2020, "Lewis Hamilton", "Valtteri Bottas", "Max Verstappen"),
         new(2021, "Max Verstappen", "Lewis Hamilton", "Valtteri Bottas"),
         new(2022, "Max Verstappen", "Charles Leclerc","Sergio Perez"),
-    };
+        new Championship(2023, "Max Verstappen", "Sergio Perez", "Lewis Hamilton"),
+        new Championship(2024, "Max Verstappen", "Lando Norris", "Charles Leclerc")
+    ];
 
     private static List<Racer>? s_moreRacers;
-    public static IList<Racer> GetMoreRacers() => s_moreRacers ??= new()
-    {
+    public static IList<Racer> GetMoreRacers() => s_moreRacers ??=
+    [
         new Racer("Luigi", "Fagioli", "Italy", Starts: 7, Wins: 1),
         new Racer("Jose Froilan", "Gonzalez", "Argentina", 26, 2),
         new Racer("Piero", "Taruffi", "Italy", Starts: 18, Wins: 1),
@@ -175,9 +177,10 @@ public static class Formula1
         new Racer("Juan Pablo", "Montoya", "Columbia", Starts: 94, Wins: 7),
         new Racer("Felipe", "Massa", "Brazil", Starts: 269, Wins: 11),
         new Racer("Mark", "Webber", "Australia", Starts: 215, Wins: 9),
-        new Racer("Daniel", "Ricciardo", "Australia", Starts: 234, Wins: 8),
-        new Racer("Valtteri", "Bottas", "Finland", Starts: 212, Wins: 10),
-        new Racer("Charles", "Leclerc", "Monaco", Starts: 115, Wins: 5),
-        new Racer("Sergio", "Perez", "Mexico", Starts: 248, Wins: 6),
-    };
-}
+        new Racer("Daniel", "Ricciardo", "Australia", Starts: 257, Wins: 8),
+        new Racer("Valtteri", "Bottas", "Finland", Starts: 246, Wins: 10),
+        new Racer("Charles", "Leclerc", "Monaco", Starts: 149, Wins: 8),
+        new Racer("Sergio", "Perez", "Mexico", Starts: 282, Wins: 6),
+        new Racer("Lando", "Norris", "UK", Starts: 128, Wins: 4)
+    ];
+}

1_CS/LINQ/DataLib/Racer.cs

@@ -3,7 +3,7 @@
 public record Racer(string FirstName, string LastName, string Country, int Starts, int Wins, IEnumerable<int> Years, IEnumerable<string> Cars) : IComparable<Racer>, IFormattable
 {
     public Racer(string FirstName, string LastName, string Country, int Starts, int Wins)
-        : this(FirstName, LastName, Country, Starts, Wins, new int[] { }, new string[] { })
+        : this(FirstName, LastName, Country, Starts, Wins, [], [])
     { }
 
     public override string ToString() => $"{FirstName} {LastName}";

1_CS/LINQ/DataLib/Team.cs

@@ -5,7 +5,7 @@ public record Team
     public Team(string name, params int[] years)
     {
         Name = name;
-        Years = years is not null ? new List<int>(years) : new List<int>();
+        Years = years is not null ? [.. years] : [];
     }
     public string Name { get; }
     public IEnumerable<int> Years { get; }

1_CS/LINQ/EnumerableSample/EnumerableSample.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

1_CS/LINQ/ExpressionTreeSample/ExpressionTreeSample.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

1_CS/LINQ/LinqIntro/LinqIntro.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

1_CS/LINQ/ParallelLinqSample/ParallelLinqSample.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

2_Libs/EFCore/BooksLib/Book.cs

@@ -2,19 +2,13 @@
 
 namespace BooksLib;
 
-public class Book
+public class Book(string title, string? publisher = default, int bookId = default)
 {
-    public Book(string title, string? publisher = default, int bookId = default)
-    {
-        Title = title;
-        Publisher = publisher;
-        BookId = bookId;
-    }
     [StringLength(50)]
-    public string Title { get; set; }
+    public string Title { get; set; } = title;
     [StringLength(30)]
-    public string? Publisher { get; set; }
-    public int BookId { get; set; }
+    public string? Publisher { get; set; } = publisher;
+    public int BookId { get; set; } = bookId;
     [StringLength(20)]
     public string? Isbn { get; set; }
 }

2_Libs/EFCore/BooksLib/BooksContext.cs

@@ -2,11 +2,8 @@
 
 namespace BooksLib;
 
-public class BooksContext : DbContext
+public class BooksContext(DbContextOptions<BooksContext> options) : DbContext(options)
 {
-    public BooksContext(DbContextOptions<BooksContext> options)
-        : base(options) { }
-
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
     {
         base.OnConfiguring(optionsBuilder);

2_Libs/EFCore/BooksLib/BooksLib.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.0" />
   </ItemGroup>
 
 

2_Libs/EFCore/ConflictHandling-FirstWins/Book.cs

@@ -1,16 +1,11 @@
 using System.ComponentModel.DataAnnotations;
+namespace ConfictHandling;
 
-public class Book
+public class Book(string title, string? publisher = default, int bookId = default)
 {
-    public Book(string title, string? publisher = default, int bookId = default)
-    {
-        Title = title;
-        Publisher = publisher;
-        BookId = bookId;
-    }
     [StringLength(50)]
-    public string Title { get; set; }
+    public string Title { get; set; } = title;
     [StringLength(30)]
-    public string? Publisher { get; set; }
-    public int BookId { get; set; }
+    public string? Publisher { get; set; } = publisher;
+    public int BookId { get; set; } = bookId;
 }

2_Libs/EFCore/ConflictHandling-FirstWins/BooksContext.cs

@@ -1,10 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+namespace ConfictHandling;
 
-public class BooksContext : DbContext
+public class BooksContext(DbContextOptions<BooksContext> options) : DbContext(options)
 {
-    public BooksContext(DbContextOptions<BooksContext> options)
-        : base(options) { }
-
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         var sampleBooks = GetSampleBooks();
@@ -16,7 +13,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
           .IsRowVersion();
     }
 
-    private IEnumerable<Book> GetSampleBooks()
+    private static IEnumerable<Book> GetSampleBooks()
         => Enumerable.Range(1, 100)
         .Select(id => new Book($"title {id}", "sample", id)).ToArray();
 

2_Libs/EFCore/ConflictHandling-FirstWins/ConflictHandling-FirstWins.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
@@ -12,13 +12,13 @@
   </PropertyGroup>-->
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.0">
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>

2_Libs/EFCore/ConflictHandling-FirstWins/GlobalUsings.cs

@@ -0,0 +1,7 @@
+global using ConfictHandling;
+
+global using Microsoft.EntityFrameworkCore;
+global using Microsoft.EntityFrameworkCore.ChangeTracking;
+global using Microsoft.Extensions.Configuration;
+global using Microsoft.Extensions.DependencyInjection;
+global using Microsoft.Extensions.Hosting;

2_Libs/EFCore/ConflictHandling-FirstWins/Program.cs

@@ -1,16 +1,10 @@
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
-
+
 using var host = Host.CreateDefaultBuilder(args)
     .ConfigureServices((context, services) =>
     {
-        var connectionString = context.Configuration.GetConnectionString("BooksConnection");
-        services.AddDbContext<BooksContext>(options =>
-        {
-            options.UseSqlServer(connectionString);
-        });
+        string connectionString = context.Configuration.GetConnectionString("BooksConnection") ?? throw new InvalidOperationException("Could not read BooksConnection");
+        services.AddDbContext<BooksContext>(options => 
+            options.UseSqlServer(connectionString));
         services.AddScoped<Runner>();
     })
     .Build();