[ASP .Net MVC] @Html.DropDownListFor thiet lap gia tri mac dinh

 2

In the controller Index I have the following:

csharp
ViewBag.Assignees = (await GetAllUsers()).Select(a =>
            new SelectListItem
            {
                Text = a.DisplayName,
                Value = a.Username,
                Selected = a.DisplayName == "John Smith"
            }).OrderBy(x => x.Text).ToList();

In the View, I have the following:

csharp
 @Html.DropDownListFor(model => model.Assignee, 
                       ViewBag.Assignees as List<SelectListItem>, 
                       "Select Assignee", 
                       new { id = "ddlAssignee", @class = "form-control"})

The dropdownlist populates as expected, however, the default (selected = true) value, which does exist, does not get set. Can someone advise what is wrong in the above?

UPDATE:

By Changing the SelectListItem.Value to a.DisplayName (same as SelectedListItem.Text) I achieved it. Still not sure what prevents the dropdownlist from displaying the item with Selected = true







Source: https://stackoverflow.com/questions/57399378/how-to-set-default-value-for-asp-net-mvc-dropdownlist-from-viewbag