使用控制器和视图在 MVC ASP.NET Core 中进行路由

Question

我仍在尝试探索路由，但我无法完成工作。我对如何使用视图和控制器感到困惑，我试图实现像 http://localhost:5036/Dashboard/Products 这样的目标，因为我正在创建一个 CRUD 应用程序，但尝试在不同的路由中，但它弹出一个错误我唯一能想到的是关于文件路径或控制器。

我有一个示例图像，其产品位于仪表板内。

仪表板

首先我有

_DashboardLayout.cshtml

...
                    <ul class="navbar-nav flex-grow-1">
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Dashboard" asp-action="Index">
                                Dashboard</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Products"
                                asp-action="Index">Products</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Products"
                                asp-action="Create">Create Product</a>
                        </li>

                    </ul>
...

还有

Controller/ProductsController.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Crud.Entities;
using Crud.Models;
using System.Threading.Tasks;

namespace Crud.Controllers.Dashboard
{
    // [Route("Dashboard/[controller]")]
    public class ProductsController : Controller
    {
        private readonly AppDbContext _context;

        public ProductsController(AppDbContext context)
        {
            _context = context;
        }

        // GET: Dashboard/Products
        [HttpGet]
        public async Task<IActionResult> Index()
        {
            var products = await _context.Products.ToListAsync();
            return View("Dashboard/Products/Index", products);
        }

        // GET: Dashboard/Products/Create
        [HttpGet("Create")]
        public IActionResult Create()
        {
            return View("Dashboard/Products/Create");
        }

        // POST: Dashboard/Products/Create
        [HttpPost("Create")]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Create([Bind("Id,ProductName,ProductBrand, Quantity, TypeOfProduct, Price, AgeRange")] Product product)
        {
            if (ModelState.IsValid)
            {
                _context.Add(product);
                await _context.SaveChangesAsync();
                return RedirectToAction(nameof(Index));
            }
            return View("Dashboard/Products/Create", product);
        }

        // GET: Dashboard/Products/Edit/5
        [HttpGet("Edit/{id:int}")]
        public async Task<IActionResult> Edit(int? id)
        {
            if (id == null) return NotFound();
            var product = await _context.Products.FindAsync(id);
            if (product == null) return NotFound();
            return View("Dashboard/Products/Edit", product);
        }

        // POST: Dashboard/Products/Edit/5
        [HttpPost("Edit/{id:int}")]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Edit(int id, [Bind("Id,ProductName,ProductBrand, Quantity, TypeOfProduct, Price, AgeRange")] Product product)
        {
            if (id != product.Id) return NotFound();
            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(product);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!ProductExists(product.Id)) return NotFound();
                    throw;
                }
                return RedirectToAction(nameof(Index));
            }
            return View("Dashboard/Products/Edit", product);
        }

        // GET: Dashboard/Products/Delete/5
        [HttpGet("Delete/{id:int}")]
        public async Task<IActionResult> Delete(int? id)
        {
            if (id == null) return NotFound();
            var product = await _context.Products.FindAsync(id);
            if (product == null) return NotFound();
            return View("Dashboard/Products/Delete", product);
        }

        // POST: Dashboard/Products/Delete/5
        [HttpPost("Delete/{id:int}")]
        [ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> DeleteConfirmed(int id)
        {
            var product = await _context.Products.FindAsync(id);
            _context.Products.Remove(product);
            await _context.SaveChangesAsync();
            return RedirectToAction(nameof(Index));
        }

        private bool ProductExists(int id)
        {
            return _context.Products.Any(e => e.Id == id);
        }
    }
}

还有

DashboardController.cs

using Microsoft.AspNetCore.Mvc;

using System.Diagnostics;
using Crud.Models;

namespace Crud.Controllers
{
    public class DashboardController : Controller
    {
        public IActionResult Index()
        {
            // Add any additional logic for the dashboard here
            return View(); // Return the dashboard view
        }


        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }


    }
}

这是我不断收到的错误。单击

_DashboardLayout.cshtml

链接后

错误1错误2

Answer 1

您可以使用

设置视图的确切位置

return View("~/Views/yourPath.cshtml")

或者您可以阅读此内容 链接