Question

I have a drop-down-list which I’m populating with a SelectList filled with SelectListItem objects, but it’s rendering the class names instead of the correct values. Can anyone see where I’m going wrong?

Here is the code where I render the list:

@Html.DropDownListFor(m => m.SelectedValue, @Model.RangeValues.SelectList)

The model is of type DataParameterValuesModel…

public class DataParameterValuesModel
{
    public string Description { get; set;}
    public DataRangesModel RangeValues { get; set; }
}

public class DataRangesModel
{
    public int? SelectedIdx { get; set; }
    public SelectList SelectList { get; set; }
}

And SelectList is populated with SelectListItem objects like this:

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

[...]

items.Add(new SelectListItem()
{
    Text = "whatever",
    Value = "whatever2"
});

[...]

parms.RangeValues = new DataRangesModel()
{
    SelectList = new SelectList(items),
    SelectedIdx = null
}

Answer 1

Try to use the 3rd constructor of SelectList and specify the data value field, and the data text field.

parms.RangeValues = new DataRangesModel()
{
    SelectList = new SelectList(items,"Value","Text"),
    SelectedIdx = null
}

Here the MSDN Reference