Selected 属性 中的 SelectListItem 不起作用

Question

控制器

Kullanicilar kullanici = db.Kullanicilar.Where(f => f.Id == 
   userProfileModel.UserModel.Kullanici.UserID).FirstOrDefault();

foreach (var item in db.Tanimlar.Where(f => f.TanimTipId == (int)ETanimTip.Kategoriler))
userProfileModel.AvaliableCategories.Add(item: new SelectListItem() 
{ 
    Text = item.Kod, 
    Value = item.Id.ToString(), 
    Selected = item.Id == kullanici.CategoryId 
});

查看

@Html.DropDownListFor(f => f.CategoryId, Model.AvaliableCategories, 
  htmlAttributes: new { @class = "form-control", id = "AvaliableCategories"  })

当我查看所选值时，我看到了 true 但查看结果是 false.. true value false result 我现在怎么办？

Answer 1

@foreach (var item in Model.AvaliableCategories)
                {
                    if (item.Selected)
                    {
                        <option value="@item.Value" selected="selected">@item.Text</option>
                    }
                    else
                    {
                        <option value="@item.Value">@item.Text</option>
                    }
                }