ASP.NET MVC复杂模型属性

Question

I'm creating a new ASP.NET MVC (with Entity Framework) project and I'm struggling a bit to understand what should I do when facing this "problem":

Lets say I have the foo model:

public class foo
{
    public int ID { get; set; }

    public virtual Book {get; set;}

    public int BookID {get; set; }

    public virtual ICollection<Theme> Themes {get; set;}

    /* Now what ?!? */
}

So let me try to explain:

• I learned that to simply the View-Controller process of getting a dropdownlist to get a select element and binding it with his "parent" model I had to have an "ID" field for the Book ID and a virtual property for the actual relation with the Book model. I really don't know if it's the "best" approach for start.

• Then I had to add a "list" of other model type to my Foo model. So now what should I do? In terms of View I was thinking creating a list of checkboxes with a scroll with do the trick but my main problem is still figure out how to handle the "model relation problem".

Thank you.

Answer 1

You need refer foo in Theme

public class foo
{
    public int ID { get; set; }

    public virtual Book {get; set;}

    public int BookID {get; set; }

    public virtual ICollection<Theme> Themes {get; set;}

}

public class Theme
{
    public int ID { get; set; }

    [Foreignkey("fooID")]
    public virtual foo foo{get; set;}

    public int fooID {get; set; }

}