Я прочитал это .
У нас есть 2 направления:
- Поместите много кода бизнес-логики в файл .razor внутри
@code{ ... }. Поэтому мы внедряем databaseContext внутрь *.razor. Затем проверьте валидацию, объект сопоставления, базу данных запросов в @code{...}
Например
@page "/foos"
@using BlalaProject.Models
@inject BlalaProject.Data ApplicationDbContext
<h1>List of Foos</h1>
@if (FooList == null)
{
<p>
<em>Loaidng...</em>
</p>
}
else
{
<DxDataGrid Data="@FooList" PageSize="20" ShowFilterRow="true">
<DxDataGridCommandColumn Width="150px"></DxDataGridCommandColumn>
<DxDataGridColumn Field="@nameof(Foo.FooName)" Caption="@("Foo name")" TextAlignment="@DataGridTextAlign.Left"></DxDataGridColumn>
<DxDataGridSpinEditColumn Field="@nameof(Foo.ParentId)" Caption="@("Parent of Foo")"></DxDataGridSpinEditColumn>
<DxDataGridColumn Field="@nameof(Foo.FooNameEnglish)" Caption="@("Foo name in English")" TextAlignment="@DataGridTextAlign.Left"></DxDataGridColumn>
</DxDataGrid>
}
@code {
IEnumerable<Foo> FooList
protected override async Task OnInitializedAsync()
{
IEnumerable<Foo> FooList = await Data ApplicationDbContext.Foo.List();
// so much business logic at here, because this page has not controller
....
}
}
- Поместите много кода бизнес-логики в контроллер. Поэтому мы вставляем databaseContext в контроллер, а затем controller в **. Razor *
Например, файл Foos.razor
@page "/foos"
@using BlalaProject.Models
@inject BlalaProject.Controllers.FooController Controller
<h1>List of Foos</h1>
@if (FooList == null)
{
<p>
<em>Loaidng...</em>
</p>
}
else
{
<DxDataGrid Data="@FooList" PageSize="20" ShowFilterRow="true">
<DxDataGridCommandColumn Width="150px"></DxDataGridCommandColumn>
<DxDataGridColumn Field="@nameof(Foo.FooName)" Caption="@("Foo name")" TextAlignment="@DataGridTextAlign.Left"></DxDataGridColumn>
<DxDataGridSpinEditColumn Field="@nameof(Foo.ParentId)" Caption="@("Parent of Foo")"></DxDataGridSpinEditColumn>
<DxDataGridColumn Field="@nameof(Foo.FooNameEnglish)" Caption="@("Foo name in English")" TextAlignment="@DataGridTextAlign.Left"></DxDataGridColumn>
</DxDataGrid>
}
@code {
IEnumerable<Foo> FooList;
protected override async Task OnInitializedAsync()
{
FooList = await Controller.GetFooAsync();
}
}
и Startup.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using BlalaProject.Areas.Identity;
using BlalaProject.Data;
using BlalaProject.Controllers;
namespace BlalaProject
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(
Configuration.GetConnectionString("DefaultConnection")));
services.AddDefaultIdentity<IdentityUser>().AddEntityFrameworkStores<ApplicationDbContext>();
services.AddRazorPages();
services.AddServerSideBlazor();
services.AddScoped<AuthenticationStateProvider, RevalidatingIdentityAuthenticationStateProvider<IdentityUser>>();
services.AddSingleton<WeatherForecastService>();
services.AddSingleton<FooController>();
services.AddSingleton<BarController>();
services.AddSingleton<BaaController>();
services.AddSingleton<FuuController>();
services.AddSingleton<FuzController>();
services.AddSingleton<FzuController>();
services.AddSingleton<BaaaController>();
services.AddSingleton<FoobarController>();
services.AddSingleton<BarFooController>();
services.AddSingleton<BaaFuuuController>();
services.AddSingleton<BaFooBaController>();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseDatabaseErrorPage();
}
else
{
app.UseExceptionHandler("/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
endpoints.MapBlazorHub();
endpoints.MapFallbackToPage("/_Host");
});
}
}
}
Каковы лучшие практики или другое решение? Что нужно добавить в .razor , так как лучшие практики в приложениях имеют много бизнес-логики?