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2024.02.28
カテゴリ： C#.NET
// Models/Product.cs
using System.ComponentModel.DataAnnotations;
{
public class Product
{
public int Id { get; set; }
[Required]
public string Name { get; set; }
public decimal Price { get; set; }
}
}
// Data/AppDbContext.cs
using Microsoft.EntityFrameworkCore;
namespace HelloWorldApp.Data
{
public class AppDbContext : DbContext
{
public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
{
}
public DbSet<Product> Products { get; set; }
}
}
// Startup.cs
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using HelloWorldApp.Data;
namespace HelloWorldApp
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<AppDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddControllersWithViews();
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
}
}
}
// Controllers/HomeController.cs
using Microsoft.AspNetCore.Mvc;
using HelloWorldApp.Data;
using System.Linq;
namespace HelloWorldApp.Controllers
{
public class HomeController : Controller
{
private readonly AppDbContext _context;
public HomeController(AppDbContext context)
{
_context = context;
}
public IActionResult Index()
{
var products = _context.Products.ToList();
return View(products);
}
}
}
<!-- Views/Home/Index.cshtml -->
@model List<HelloWorldApp.Models.Product>
<h2>Products</h2>
<table class="table">
<thead>
<tr>
<th>Id</th>
<th>Name</th>
<th>Price</th>
</tr>
</thead>
<tbody>
@foreach (var product in Model)
{
<tr>
<td>@product.Id</td>
<td>@product.Name</td>
<td>@product.Price</td>
</tr>
}
</tbody>
</table>
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Last updated
2024.02.28 05:21:11
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