Selected value for dropdownlistfor in mvc4 - asp.net-mvc

Question

I have created a ViewBag selectlist in Edit action and set the value to be selected as:
ViewBag.Doors = new SelectList(
new[]
{
new {ID = 1, Name="1-Door"},
new {ID = 2, Name="2-Doors"},
new {ID = 3, Name="3-Doors"},
new {ID = 4, Name="4-Doors"},
new {ID = 5, Name="5-Doors"},
new {ID = 6, Name="6-Doors"},
new {ID = 7, Name="7-Doors"}
},
"ID", "Name", advert.Doors);
But in the view the value for the dropdown is not selected by default.
My view code is:
#Html.DropDownListFor(model => model.Doors, (SelectList)ViewBag.Doors, "--Select--")
#Html.ValidationMessageFor(model => model.Doors)
The property Doors will be numeric 1,2,3,..

Answer 1

How will I do it using Annonymous type in ViewBag ?
Overload
Controller Action Method
public ActionResult DropDownListFor()
{
ViewBag.Doors = new SelectList(
new[]
{
new {Value = 1,Text="1-Door"},
new {Value = 2,Text="2-Door"},
new {Value = 3,Text="4-Door"},
new {Value = 4,Text="4-Door"},
new {Value = 5,Text="5-Door"},
new {Value = 6,Text="6-Door"},
new {Value = 7,Text="7-Doors"}
}, "Value", "Text", 7);
return View();
}
View
#Html.DropDownList("Doors")
How will I do it using SelectListItem?
Action Method
[HttpGet]
public ActionResult DropDownListFor()
{
List<SelectListItem> items = new List<SelectListItem>();
items.Add(new SelectListItem { Text = "Action", Value = "0" });
items.Add(new SelectListItem { Text = "Drama", Value = "1" });
items.Add(new SelectListItem { Text = "Comedy", Value = "2",
Selected = true });
items.Add(new SelectListItem { Text = "Science Fiction", Value = "3" });
ViewBag.MovieType = items;
return View();
}
View
#using (Html.BeginForm("Action", "Controller", FormMethod.Post))
{
#Html.DropDownList("MovieType")
}
How will I do it using View Model?
View
#using (Html.BeginForm("Action", "Controller", FormMethod.Post))
{
#Html.DropDownListFor(m => m.Id, Model.DDLList, "Please select");
}
Action Method
[HttpGet]
public ActionResult DropDownListFor()
{
return View(new Models.Dropdown());
}
View Model
public class Dropdown
{
public string Id { get; set; }
public List<SelectListItem> DDLList
{
get
{
return new List<SelectListItem>()
{
new SelectListItem
{
Text = "1-Door",
Value = "1",
Selected = true
},
new SelectListItem
{
Selected = false,
Value = "2",
Text = "2-Door"
}
};
}
}
}