Creating 1 property list<object> from 4 separate list<T>

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Hi everyone,
I have a C# WPF window that I insert 4 List<t> a string,decimal,decimal, and int. Each list is numbered correctly 0,1,2… with the correct information in order in the list. I am trying to create a public property of a List<myobject> that has properties myobject.string, myobject.decimal, myobject.decimal, myobject.int How can I enter these properties into my list of my object? Here is what I have and some ways I have been trying.

C#

public partial class ShoppingCart : Window
    {
        private List<string> listProductNames = new List<string>();
        private List<decimal> listProductPrices = new List<decimal>();
        private List<decimal> listProductSalesTax = new List<decimal>();
        private List<int> listProductQuantity = new List<int>();
        public List<Product> Cart => new List<Product>();

        public ShoppingCart(Customer c, List<string> lpn, List<decimal> lpp, List<decimal> lpt, List<int> lpq)
        {
            InitializeComponent();
            customer = c;
            listProductNames = lpn;
            listProductPrices = lpp;
            listProductSalesTax = lpt;
            listProductQuantity = lpq;
            CreateCart(listProductNames, listProductPrices, listProductSalesTax, listProductQuantity);
            PopulateListViewCart();
        }

        private void CreateCart(List<string> lpn, List<decimal> lpp, List<decimal> lpt, List<int> lpq)
        {
            selectedProduct = new Product();

            foreach(string name in lpn)
            {
                selectedProduct.ProductName = name;
            }
            foreach(decimal price in lpp)
            {
                selectedProduct.ProductPrice = price;
            }
            foreach(decimal tax in lpt)
            {
                selectedProduct.ProductTax = tax;
            }
            foreach(int quantity in lpq)
            {
                selectedProduct.ProductQuantity = quantity;
            }
            Cart.Add(selectedProduct);
        }
}

What I have tried:

foreachs setting prod seperately and adding to list

Posted 5-Dec-18 18:58pm

TheBigBearNow

Updated 6-Dec-18 7:02am

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2 solutions

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jsc42 · Answer 1 · 2018-12-05T21:59:00

Have you tried using the indexes and matching them with each other? e.g.

C#

for (int i = 0; i < lpn.Count; i++)
{
    Product selectedProduct = new Product();
    selectedProduct.ProductName = lpn[i];
    selectedProduct.ProductPrice = lpp[i];
    // etc
    Cart.Add(selectedProduct);
}

Gerry Schmitz · Answer 2 · 2018-12-06T07:02:00

Solution 2

public Product GetProduct( int n ) {

   Product p = new Product();

   p.ProductName = this.listProductNames[ n ];
   // etc.

   return p;
}

Posted 6-Dec-18 7:02am

Gerry Schmitz

Comments

TheBigBearNow 6-Dec-18 17:46pm

Hey everyone sorry for the late response. I ended up using a List<product> which worked but i only got it to be loaded in the field. I am trying to populate a property of List<product> so i can use databinding but i did the List.Add() and nothing was added to my property.

//no longer using my 4 seperate lists because all fields are in my product class.
        private List<Product> listOfP = new List<Product>();
        public List<Product> Cart => new List<Product>();

        public ShoppingCart(Customer c, List<Product> listprod)
        {
            InitializeComponent();
            customer = c;
 
            listOfP = listprod;
            CreateCart(listOfP);
            PopulateListViewCart();
        }
 
private void CreateCart(List<Product> lcart)
        {
  
            //Cart.Add(selectedProduct);
            foreach(Product product in listOfP)
            {
                Cart.Add(product);
            }
        }

This property is not being filled with my listofP but my listofP has the correct items.