C#•9mo ago

trying to make an add to cart application in asp.net mvc core

i have been trying for ages to get it to work and am just trying to test it but i have no idea as to why the information isnt getting shown on the view, will have screenshots posted below

23 Replies

mg•9mo ago

$paste

MODiX•9mo ago

If your code is too long, you can post to https://paste.mod.gg/ and copy the link into chat for others to see your shared code!

mg•9mo ago

that site allows you to paste and share multiple files

Sk•9mo ago

ok 1 sec

mg•9mo ago

but it looks like your issue is that your CartService.GetCartItems() returns the _cartItems field, which you never add anything to Unless you've accessed the AddToCart endpoint beforehand

Sk•9mo ago

https://paste.mod.gg/szjtdkipisxm

BlazeBin - szjtdkipisxm

A tool for sharing your source code with the world!

mg•9mo ago

👍 looks like CartService got cut off though

Sk•9mo ago

using AddToCartTest.Models;

namespace AddToCartTest.Services
{
    public class CartService : ICartService
    {
        private readonly List<Cart> _cartItems = new List<Cart>();

        private readonly List<Cart> _allProducts = new List<Cart>
    {
        new Cart { Id = 1, Name = "Apple Vision Pro", Price = 3499.0M },
        new Cart { Id = 2, Name = "Airpod Max", Price = 599.0M },
        new Cart { Id = 3, Name = "Macbook Air M3", Price = 2299.0M },
        new Cart { Id = 4, Name = "Mac Pro", Price = 5199.0M },
        new Cart { Id = 5, Name = "Pro Display XDR", Price = 1399.0M },
        new Cart { Id = 6, Name = "iPhone 15 Pro Max", Price = 899.0M },
        new Cart { Id = 7, Name = "iPad Pro", Price = 599.0M },
        new Cart { Id = 8, Name = "Apple Watch Series 9", Price = 299.0M },
    };

        

        public void AddToCart(Cart product)
        {
            _cartItems.Add(product);
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems.ToList();
        }
    }/*public void AddToCart(int productId)
        {
            var productToAdd = _allProducts.FirstOrDefault(p => p.Id == productId);
            if (productToAdd != null)
            {
                _cartItems.Add(productToAdd);
            }
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems.ToList();
        }*/

        /*public void AddToCart(Cart product)
        {
            _cartItems.Add(product);
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems;
        }*/

}

using AddToCartTest.Models;

namespace AddToCartTest.Services
{
    public class CartService : ICartService
    {
        private readonly List<Cart> _cartItems = new List<Cart>();

        private readonly List<Cart> _allProducts = new List<Cart>
    {
        new Cart { Id = 1, Name = "Apple Vision Pro", Price = 3499.0M },
        new Cart { Id = 2, Name = "Airpod Max", Price = 599.0M },
        new Cart { Id = 3, Name = "Macbook Air M3", Price = 2299.0M },
        new Cart { Id = 4, Name = "Mac Pro", Price = 5199.0M },
        new Cart { Id = 5, Name = "Pro Display XDR", Price = 1399.0M },
        new Cart { Id = 6, Name = "iPhone 15 Pro Max", Price = 899.0M },
        new Cart { Id = 7, Name = "iPad Pro", Price = 599.0M },
        new Cart { Id = 8, Name = "Apple Watch Series 9", Price = 299.0M },
    };

        

        public void AddToCart(Cart product)
        {
            _cartItems.Add(product);
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems.ToList();
        }
    }/*public void AddToCart(int productId)
        {
            var productToAdd = _allProducts.FirstOrDefault(p => p.Id == productId);
            if (productToAdd != null)
            {
                _cartItems.Add(productToAdd);
            }
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems.ToList();
        }*/

        /*public void AddToCart(Cart product)
        {
            _cartItems.Add(product);
        }

        public List<Cart> GetCartItems()
        {
            return _cartItems;
        }*/

}

this is the full code, i just cut out the commeted bit

mg•9mo ago

it's best to just share your code exactly as it is

Sk•9mo ago

sure, mb

mg•9mo ago

because that's the code that's running but anyway, are you sure there are actually elements in _cartItems when you access it?

Sk•9mo ago

no, how would be the best way to assign my items in CartServices to _cartItems, at the moment im just trying to test it to make sure its working then i will be able to connect it so when a buttons pressed its added to cart

mg•9mo ago

You can initialize the list with some starting elements just like you do for _allProducts

Sk•9mo ago

ah okay tyyyyy, ill try that wehn im back ive initialized it but even just trying to test using

 public IActionResult AddToCart()
 {
      // For demonstration purposes, manually add a product to the cart
 var productToAdd = new Cart
 {
     Id = 999, // Choose a unique ID
     Quantity = 3,
     Price = 99.0M,
     Name = "Manually Added Product",
     // Add other properties as needed
 };
     
 _cartService.AddToCart(productToAdd);

 return RedirectToAction("Index");
 }

 public IActionResult AddToCart()
 {
      // For demonstration purposes, manually add a product to the cart
 var productToAdd = new Cart
 {
     Id = 999, // Choose a unique ID
     Quantity = 3,
     Price = 99.0M,
     Name = "Manually Added Product",
     // Add other properties as needed
 };
     
 _cartService.AddToCart(productToAdd);

 return RedirectToAction("Index");
 }

I cant get it to work, so im not sure what else to do because that code should add an item to the cart but it still just displays an empty cart

mg•9mo ago

what code @Sk oh sorry ok right, but are you actually navigating to /AddToCart? And is CartService a singleton?

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trying to make an add to cart application in asp.net mvc core