I am trying to return two models in one view in my MVC4 project by following this tutorial. I have one Model named Product that looks like this:
public class Product : IEnumerable<ShoppingCartViewModel>,
IList<ShoppingCartViewModel>
{
public int ProductId { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
(...)
}
And a ViewModel with a list of ShoppingCarts (List) that looks like this:
public class ShoppingCartViewModel : IEnumerable<Product>, IList<Product>
{
public List<Cart> CartItems { get; set; }
public decimal CartTotal { get; set; }
}
I have one "wrapper model" that does the following:
public class ProductAndCartWrapperModel
{
public Product product;
public ShoppingCartViewModel shoppingCart;
public ProductAndCartWrapperModel()
{
product = new Product();
shoppingCart = new ShoppingCartViewModel();
}
}
Then I try to simply display the view with the two different models in this way
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<projectname.ProductAndCartWrapperModel>" %>
(...)
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<div>
<% foreach (projectname.Models.Product p in
ViewData.Model.product) { %>
<div>
<div id="ProductName"><%: p.Name %></div>
<div id="ProductPrice"><%: p.Price %></div>
</div>
<% } %>
</div>
<div>
<% foreach (projectname.ViewModels.ShoppingCartViewModel sc in
ViewData.Model.shoppingCart) { %>
<div>
<div id="Div1"><%: sc.CartItems %></div>
<div id="Div2"><%: sc.CartTotal %></div>
</div>
<% } %>
</div>
</asp:Content>
Unfortunately, when trying to build I get one error
Cannot convert type 'projectname.Models.Product' to
'projectname.ViewModels.ShoppingCartViewModel'
followed by a list of errors that look like this for both the models:
does not implement interface member
'System.Collections.Generic.IEnumerable<projectname.ViewModels.ShoppingCartViewModel>.
GetEn umerator()'. 'projectname.Models.Product.GetEnumerator()' cannot implement
'System.Collections.Generic.IEnumerable<projectname.ViewModels.ShoppingCartViewModel>.
GetEnumerator()' because it does not have the matching return type of
'System.Collections.Generic.IEnumerator<projectname.ViewModels.ShoppingCartViewModel>'.
I have the feeling I am quite close to displaying both of the models on one page, but I do not know how to implement the IEnumerator and get the types to match. I tried to add one like this:
public IEnumerator<Object> GetEnumerator()
{
return this.GetEnumerator();
}
but that was to no avail.
I would be very grateful if someone could explain how to correctly implement the interface members and get the solution to build (if possible).