DataBinding in asp.net mvc?

DataBinding in ASP.NET MVC :

              Yes, In asp.net à all standard bidning controls are requires ListItem collection.EX: dropdown, radaiobutton,listbox..ect

Binding Items to DropDownList asp.net mvc

1st way

  List<string> languages = new List<string>();

            languages.Add("Chsarp");

            languages.Add("VisualBasic");

            languages.Add("FSharp");

            ViewData["languges"] = new SelectList(languages);  // as IEnumerable

            return View();

@Html.DropDownList("languges", "--select one--")  ----------loosely copuled

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2nd way

           SelectListItem list1 = new SelectListItem();

            list1.Text = "ONE";

            list1.Value = "one";

            SelectListItem list2 = new SelectListItem();

            list2.Text = "TWO";

            list2.Value = "two";

            List<SelectListItem> slist = new List<SelectListItem>();

            slist.Add(list1);

            slist.Add(list2);

            ViewData["key"] = slist;

            return View();

@Html.DropDownList("CategoryId", (IEnumerable<SelectListItem>)ViewData["key"])

// as IEnumerable

3rd way

            SelectListItem list1 = new SelectListItem();

            list1.Text = "ONE";

            list1.Value = "one";

            SelectListItem list2 = new SelectListItem();

            list2.Text = "TWO";

            list2.Value = "two";

            List<SelectListItem> slist = new List<SelectListItem>();

            slist.Add(list1);

            slist.Add(list2);

          

            return View(slist);

@model IEnumerable<SelectListItem>               // as IEnumerable

@Html.DropDownList("strings",Model)

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IQueryable<SelectListItem> query = conobj.emps.Select(t => new SelectListItem { Text = t.EName, Value = t.ELocation, Selected = t.EId.Equals(2) });

            IEnumerable<SelectListItem> ier = query.AsEnumerable<SelectListItem>();

            return View(ier);

 

@model IEnumerable<SelectListItem>

@Html.DropDownList("strings",Model)

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   IQueryable<SelectListItem> d = conobj.emps.Select(t => new SelectListItem { Text = t.ELocation, Value = t.EName });

            IEnumerable<SelectListItem> j = d.AsEnumerable<SelectListItem>();

            return View(j);

@model IEnumerable<SelectListItem>

@Html.DropDownList("ssl",Model,"--select--")

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   List<SelectListItem> items = new List<SelectListItem>();

   items.Add(new SelectListItem() { Text = "Test1", Value = "1", Selected = false });

   items.Add(new SelectListItem() { Text = "Test8", Value = "8", Selected = true });

   items.Add(new SelectListItem() { Text = "Test3", Value = "3", Selected = false });

   items.Add(new SelectListItem() { Text = "Test5", Value = "5", Selected = false });

  SelectList selectList = new SelectList(items, "Value", "Text");

NOTE:

any way but we must convert them as IEnumerable<SelectListItem> is must.