Add W8 D1 program

FormulatrixBootcamp.sln

@@ -165,6 +165,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataContractSerialization",
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataContractJsonSerialization", "W6 D2\DataContractJsonSerialization\DataContractJsonSerialization.csproj", "{C649FA5B-2D7A-448B-8148-5AFC9EA821E4}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "W8 D1", "W8 D1", "{1553EE85-EB84-49FF-97EE-0E0431ABD980}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EntityFramework", "W8 D1\EntityFramework\EntityFramework.csproj", "{D65BC369-5452-4A87-8A12-49E1ABAB7F2A}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -423,11 +427,16 @@ Global
 		{C649FA5B-2D7A-448B-8148-5AFC9EA821E4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C649FA5B-2D7A-448B-8148-5AFC9EA821E4}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C649FA5B-2D7A-448B-8148-5AFC9EA821E4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D65BC369-5452-4A87-8A12-49E1ABAB7F2A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D65BC369-5452-4A87-8A12-49E1ABAB7F2A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D65BC369-5452-4A87-8A12-49E1ABAB7F2A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D65BC369-5452-4A87-8A12-49E1ABAB7F2A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
+		{D65BC369-5452-4A87-8A12-49E1ABAB7F2A} = {1553EE85-EB84-49FF-97EE-0E0431ABD980}
 		{C649FA5B-2D7A-448B-8148-5AFC9EA821E4} = {AED24BE0-064B-4FAC-9168-1A5A8386EAAE}
 		{EDED0B55-D1A6-4710-8656-8DCC6606A66D} = {AED24BE0-064B-4FAC-9168-1A5A8386EAAE}
 		{865162EF-747B-46A5-8463-625FEC5E88C8} = {AED24BE0-064B-4FAC-9168-1A5A8386EAAE}

W8 D1/EntityFramework/Category.cs

@@ -0,0 +1,23 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace EntityFramework;
+
+public class Category
+{
+	public int CategoryId { get; set; }
+
+	[Required]
+	[StringLength(15)]
+	public string? CategoryName { get; set; }
+
+	[Column(TypeName = "ntext")]
+	public string? Description { get; set; }
+
+	public virtual ICollection<Product> Products { get; set; }
+
+	public Category() 
+	{
+		Products = new HashSet<Product>();
+	}
+}

W8 D1/EntityFramework/EntityFramework.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.12" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.12">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.12" />
+  </ItemGroup>
+</Project>

W8 D1/EntityFramework/Northwind.cs

@@ -0,0 +1,20 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace EntityFramework;
+
+public class Northwind : DbContext
+{
+	public DbSet<Category> Categories { get; set; }
+	public DbSet<Product> Products { get; set; }
+
+	protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) 
+	{
+		string path = Path.Combine(Environment.CurrentDirectory, "Northwind.db");
+		optionsBuilder.UseSqlite($"Filename={path}");
+	}
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+
+    }
+}

W8 D1/EntityFramework/Product.cs

@@ -0,0 +1,33 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace EntityFramework;
+
+public class Product
+{
+	public int ProductId { get; set; }
+
+	[Required]
+	[StringLength(40)]
+	public string? ProductName { get; set; }
+
+	public int SupplierId { get; set; }
+	public int CategoryId { get; set; }
+
+	[Column("UnitPrice", TypeName = "money")]
+	public decimal? UnitPrice { get; set; }
+
+	[Column("UnitsInStock")]
+	public short? UnitsInStock { get; set; }
+
+	[Column("UnitsOnOrder")]
+	public short? UnitsOnOrder { get; set; }
+
+	[Column("ReorderLevel")]
+	public short? ReorderLevel { get; set; }
+
+	[Required]
+	public bool Discontinued { get; set; }
+
+	public virtual Category Category { get; set;} = null!;
+}

W8 D1/EntityFramework/Program.cs

@@ -0,0 +1,25 @@
+using EntityFramework;
+using Microsoft.EntityFrameworkCore;
+
+public class Program 
+{
+	static void Main() 
+	{
+		using(Northwind db = new Northwind()) 
+		{
+			Console.WriteLine($"Name: {db.Database}");
+			Console.WriteLine($"Database: {db.Database.ProviderName}");
+			Console.WriteLine($"Database: {db.Database.CanConnect()}");
+
+			var categories = db.Categories.Where(cat => cat.CategoryId == 1).Include(cat => cat.Products);
+			foreach (var cat in categories) 
+			{
+				Console.WriteLine(cat.CategoryName);
+				foreach (var product in cat.Products) 
+				{
+					Console.WriteLine("  {0}", product.ProductName);
+				}
+			}
+		}
+	}
+}

W8 D1/EntityFramework/Supplier.cs

@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace EntityFramework;
+
+public class Supplier
+{
+	public int SupplierId { get; set; }
+
+	[Required]
+	[StringLength(40)]
+	public string? CompanyName { get; set; }
+}