Create DropDownListFor from SelectList with default value
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<Status> 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.
There exist already some discussions about that here or there. One of the problems might be using a different type than string
for the key value. I had similar problems in past and I know that i solved it like this - explicitly setting the Selected
property when preparing the list (in your case, AlLStatus
).
Would mean, for your case (in controller action):
IEnumerable<SelectListItem> selectList =
from s in allStatus // where ever you get this from, database etc.
select new SelectListItem
{
Selected = (s.id == model.Item.Item.Status),
Text = cs.Description,
Value = s.id.ToString()
};
model.AllStatus = selectList;