Refactor Runner, update to .NET 10, upgrade EF Core

Refactored Runner to use primary constructor and direct context injection.
Updated project to target .NET 10.0 and upgraded EF Core and related packages to 10.0.3.
Replaced old .sln with new .slnx solution file format.

Author: christiannagel

5_More/EFCore/TemporalTableSample/Runner.cs

@@ -2,17 +2,11 @@
 
 namespace TemporalTableSample;
 
-public class Runner
+public class Runner(BooksContext booksContext)
 {
-    private readonly BooksContext _booksContext;
-    public Runner(BooksContext booksContext)
-    {
-        _booksContext = booksContext;
-    }
-
     public async Task CreateTheDatabaseAsync()
     {
-        bool created = await _booksContext.Database.EnsureCreatedAsync();
+        bool created = await booksContext.Database.EnsureCreatedAsync();
         string creationInfo = created ? "created" : "exists";
         Console.WriteLine($"database {creationInfo}");
     }
@@ -23,7 +17,7 @@ public async Task DeleteDatabaseAsync()
         string? input = Console.ReadLine();
         if (input?.ToLower() == "y")
         {
-            bool deleted = await _booksContext.Database.EnsureDeletedAsync();
+            bool deleted = await booksContext.Database.EnsureDeletedAsync();
             string deletionInfo = deleted ? "deleted" : "not deleted";
             Console.WriteLine($"database {deletionInfo}");
         }
@@ -32,8 +26,8 @@ public async Task DeleteDatabaseAsync()
     public async Task AddBookAsync(string title, string publisher)
     {
         Book book = new(title, publisher);
-        await _booksContext.Books.AddAsync(book);
-        int records = await _booksContext.SaveChangesAsync();
+        await booksContext.Books.AddAsync(book);
+        int records = await booksContext.SaveChangesAsync();
         Console.WriteLine($"{records} record added with id {book.BookId}");
 
         Console.WriteLine();
@@ -45,8 +39,8 @@ public async Task AddBooksAsync()
         Book b2 = new("Professional C# 6 and .NET Core 1.0", "Wrox Press");
         Book b3 = new("Professional C# 5 and .NET 4.5.1", "Wrox Press");
         Book b4 = new("Essential Algorithms", "Wiley");
-        await _booksContext.Books.AddRangeAsync(b1, b2, b3, b4);
-        int records = await _booksContext.SaveChangesAsync();
+        await booksContext.Books.AddRangeAsync(b1, b2, b3, b4);
+        int records = await booksContext.SaveChangesAsync();
         Console.WriteLine($"{records} records added");
 
         Console.WriteLine();
@@ -55,10 +49,10 @@ public async Task AddBooksAsync()
     public async Task ReadBooksAsync(CancellationToken token = default)
     {
 #if DEBUG
-        string query = _booksContext.Books.ToQueryString();
+        string query = booksContext.Books.ToQueryString();
         Console.WriteLine(query);
 #endif
-        List<Book> books = await _booksContext.Books.ToListAsync(token);
+        List<Book> books = await booksContext.Books.ToListAsync(token);
         foreach (var b in books)
         {
             Console.WriteLine($"{b.Title} {b.Publisher}");
@@ -69,9 +63,9 @@ public async Task ReadBooksAsync(CancellationToken token = default)
 
     public async Task QueryBooksAsync(CancellationToken token = default)
     {
-        string query = _booksContext.Books.Where(b => b.Publisher == "Wrox Press").ToQueryString();
+        string query = booksContext.Books.Where(b => b.Publisher == "Wrox Press").ToQueryString();
         Console.WriteLine(query);
-        await _booksContext.Books
+        await booksContext.Books
             .Where(b => b.Publisher == "Wrox Press")
             .ForEachAsync(b =>
             {
@@ -83,14 +77,14 @@ await _booksContext.Books
 
     public async Task UpdateBookAsync()
     {
-        Book? book = await _booksContext.Books.FindAsync(1);
+        Book? book = await booksContext.Books.FindAsync(1);
         Console.WriteLine("Just a short delay before updating...");
         await Task.Delay(TimeSpan.FromSeconds(5));
 
         if (book != null)
         {
             book.Title = "Professional C# and .NET - 2021 Edition";
-            int records = await _booksContext.SaveChangesAsync();
+            int records = await booksContext.SaveChangesAsync();
             Console.WriteLine($"{records} record updated");
         }
         Console.WriteLine();
@@ -99,13 +93,13 @@ public async Task UpdateBookAsync()
 
     public async Task TemporalPointInTimeQueryAsync()
     {
-        Book? book = await _booksContext.Books.FindAsync(1);
+        Book? book = await booksContext.Books.FindAsync(1);
         if (book is null) return;
         // read shadow property for time
-        if (_booksContext.Entry(book).CurrentValues["PeriodStart"] is DateTime periodStart)
+        if (booksContext.Entry(book).CurrentValues["PeriodStart"] is DateTime periodStart)
         {
             DateTime previousTime = periodStart.AddSeconds(-4);
-            var previousBook = await _booksContext.Books
+            var previousBook = await booksContext.Books
                 .TemporalAsOf(previousTime)
                 .TagWith("temporalasof")
                 .SingleOrDefaultAsync(b => b.BookId == book.BookId);
@@ -121,21 +115,21 @@ public async Task TemporalPointInTimeQueryAsync()
 
     public async Task TemporalAllQueryAsync()
     {
-        await _booksContext.Books
+        await booksContext.Books
             .TemporalAll()
             .TagWith("temporalall")
             .ForEachAsync(b =>
         {
-            var entry = _booksContext.Entry(b);
+            var entry = booksContext.Entry(b);
             Console.WriteLine($"{b.Title} {entry.State}");
         });
     }
 
     public async Task DeleteBooksAsync()
     {
-        List<Book> books = await _booksContext.Books.ToListAsync();
-        _booksContext.Books.RemoveRange(books);
-        int records = await _booksContext.SaveChangesAsync();
+        List<Book> books = await booksContext.Books.ToListAsync();
+        booksContext.Books.RemoveRange(books);
+        int records = await booksContext.SaveChangesAsync();
         Console.WriteLine($"{records} records deleted");
 
         Console.WriteLine();

5_More/EFCore/TemporalTableSample/TemporalTableSample.csproj

@@ -2,19 +2,19 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.4">
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.4" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="10.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.3" />
   </ItemGroup>
 
   <ItemGroup>

5_More/EFCore/TemporalTableSample/TemporalTableSample.sln

@@ -0,0 +1,3 @@
+<Solution>
+  <Project Path="TemporalTableSample.csproj" />
+</Solution>