How to stop select tag helper from automatically adding 'multiple' attribute

Question

I'm working in .Net Core VS2017

and trying to populate my dropdown with data from the model. For this purpose I declared my select list as

<select class="form-control" asp-for="TicketTypes" asp-items="@(new SelectList(Model.TicketTypes,"Id","Name"))"></select>

It is loading the data correctly but it automatically adds the multiple attribute to it. How to stop this because I need to show this in dropdown

score 5 · Accepted Answer · answered Aug 01 '17 at 03:13

So it turns out the select tag helper will automatically generate a multi-select if the property specified in the asp-for attribute is an IEnumerable.

public IEnumerable<Models.TicketTypeList> TicketTypes { get; set; }

So I changed the code and stored the data in ViewBag as SelectList by changing the code in controller to

var ticketTypes = _context
                .TicketType
                .Where(w => w.Deleted == false)
                .Select(s => new {
                                                    id = s.Id,
                                                    Name = s.Name
                    }).OrderBy(o=>o.Name).ToList();

ViewBag.ticketTypeList = new SelectList(ticketTypes, "id", "Name");

and then in the view changed the code to

@Html.DropDownList("TicketTypes",ViewBag.ticketTypeList as SelectList, new { @class = "form-control" })

How to stop select tag helper from automatically adding 'multiple' attribute

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