How can I interact with a class that lies behind two?

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How can I interact with a class that lies behind two?

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#1 by (0 votes)

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Good evening!

I will explain the problem since the title is not suggestive of it. I have to develop an online shopping system, able to manage the purchases of each user. If we think about it a little, physically there is a mall, or more, and there are several carts for each mall. For the latter case, the carts I'm implementing a List .

It is necessary to take into account that I am programming based on the concept of layered programming, and the class Carrinhos , as well as Produto are in the part regarding BO (Buisness Object) in>)

Seeing a little my class Carts that is in the BO we have:

A list List<Produto> listaProdutos; of Produtos ;

Builders and Properties (Mandatory)

Essential methods to manipulate the existing list, such as

    public bool AddProduto(Produto p)
    {
         if (!listaProdutos.Contains(p))
         {
                listaProdutos.Add(p);
                return true;
         }
        else
                throw new ImpossivelExistirProdutosIguaisException();


    }

    public bool RemoveProduto(Produto p)
    {
        if(listaProdutos.Contains(p))//Se está lá um produto
        {
            listaProdutos.Remove(p);
            return true;
        }
        else
            throw new ProdutoNaoExisteNoCarrinho();

    }

From DL Layer ) I enter this class and add, or remove, carts from a given supermarket (Class: Shopping ). In the Data Layer I work with a class where I implement a Dictionary of Shoppings where the name of the mall is the key , static Dictionary<string,Shopping> sistemaDeCompras = new Dictionary<string, Shopping>();

Schematically, what happens is:

Thatis,howcanIcheckifaparticularmallexists,ifagivencartexists,andifbothexist,howcanIaddproducts?

IalsoleavemyDLhereforanalysis:

staticDictionary<string,Shopping>sistemaDeCompras=newDictionary<string,Shopping>();publicstaticboolCriarShopping(Shoppingsh,stringnome){if(!sistemaDeCompras.ContainsKey(nome)){sistemaDeCompras.Add(nome,sh);returntrue;}returnfalse;}publicstaticboolRemoveShopping(stringnome){if(sistemaDeCompras.ContainsKey(nome)){sistemaDeCompras.Remove(nome);returntrue;}returnfalse;}publicstaticboolInsereCarrinho(Carrinhoc,stringnomeShopping){if(sistemaDeCompras.ContainsKey(nomeShopping)){returnsistemaDeCompras[nomeShopping].AddCarrinho(c);//GravaCarrosEstacionados("Park.f");

            }
            else
                return false;
        }

Thanks in advance!

c# lista

asked by anonymous 27.06.2015 / 23:42

1 answer

current_date doctrine Doubt about working with (getViewportHeight ())

score 0 · Answer 1

I do not know if that's exactly what you're looking for, as long as I understand this, it's pretty easy.

// Se você quer analisar se determinado shopping e carrinho está contido num dicionário.
public static bool Analise (Carrinho c, string shopping) {
    if (sistemaDeCompras.ContainsKey(nome)){
        return (sistemaDeCompras["nome"].Contains(c)) ? true : false;
    }
    else {
        return false;
    }
}

public static void Adicionar (){
    Carrinho meuCarrinho = new Carrinho();
    if (Analise(meuCarrinho, "Algum shopping que você queira")){
        meuCarrinho.AddProduto("Algum produto que você queira");
    }
    else {
        throw new CarrinhoOuShoppingNaoExistente();
    }
}

I think that's what you want, but if it's not, I think you've already figured it out.