Create DropDownListFor from SelectList with default value

Question

I have a dropdownlistfor:

 @Html.DropDownListFor(model => model.Item.Item.Status, new SelectList(@Model.AllStatus, \"id\", \"Description\"),          


        

Answer 1

This is in addition to the answers above. This is how I would have done it.

The view model is there to represent your data. So for a single drop down list I would have the following:

public class MyViewModel
{
     public int StatusId { get; set; }

     public IEnumerable Statuses { get; set; }
}

And the Status class would look like this:

public class Status
{
     public int Id { get; set; }

     public string Description { get; set; }
}

The controller's action method to handle the view:

public class MyController
{
     private readonly IStatusService statusService;

     public MyController(IStatusService statusService)
     {
          this.statusService = statusService;
     }

     public ActionResult MyActionMethod()
     {
          MyViewModel viewModel = new MyViewModel
          {
               Statuses = statusService.GetAll(),
               StatusId = 4 // Set the default value
          };

          return View(viewModel);
     }
}

The view will look like this:

@model MyProject.ViewModels.MyViewModel

@Html.DropDownListFor(
     x => x.StatusId,
     new SelectList(Model.Statuses, "Id", "Description", Model.StatusId),
     "-- Select --"
)
@Html.ValidationMessageFor(x => x.StatusId)

There you go.