Get Navigation Properties id's in action method

Question

I have 3 models names images,game and imageviewmodel

public class game
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]

    public int Id { get; set; }
    [Required]
    public string Name { get; set; }
    public virtual ICollection<images> Image { get; set; }

}
public class images
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]

    public int Id { get; set; }
    [Required]
    [DataType(DataType.ImageUrl)]
    public string Image1Url { get; set; }
    public virtual game Game { get; set; }

}
public class ImageViewModel
{
    [Required]
    [DataType(DataType.Upload)]
    public HttpPostedFileBase ImageUpload { get; set; }
    public virtual game Game { get; set; }

}
public class GameDb : DbContext
{
    public DbSet<game> Games { get; set; }
    public DbSet<images> Images { get; set; }
 }

My view is strongly typed view of imageviewmodel . I have a dropdown list there with all games filled Here is my GET create method

public ActionResult Create()
        {
            ViewBag.GameId = new SelectList(db.Games, "Id", "Name");
            return View(new ImageViewModel());
        }

my dropdown is filled with GenreId

 <div class="editor-field">
            @Html.DropDownList("GameId","Select an Item")
        </div

On my POST create method I want to access dropdown value id to insert in image table

[HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create(ImageViewModel model)
         {
         }

I am unable to access game id of drop down list.I am doing like this

var img=new images{

Game.( no intellisense) =model.Game.id,

};

How do I resolve that need some help.

Answer 1

First of all consider follow the naming convensions when you name your classes.

Second, consider using DropDownListFor helper method instead of DropDownList

And finally you have to create new Game object instance before set it's id:

var img = new images
{
   Game = new game { Id = model.Game.Id }
};