-1
我有一個狀態下拉在我的MVC應用程序,並調用幫助器方法來填充下拉列表。在多次選擇相同的值時,下拉將重置爲默認值「選擇狀態」,而不是正確的狀態。MVC Html.DropDownListFor不綁定在選擇相同的值
HTML查看
<div>
@Html.LabelFor(m => m.Pat.StateId)
@Html.DropDownListFor(m => m.Pat.StateId, listHelper.GetState(Model.Pat.StateId))
@Html.ValidationMessageFor(m => m.Pat.StateId)
</div>
助手代碼
public static IList<SelectListItem> GetStateOptions(int? selectedId = null)
{
var lookupService = DependencyResolver.Current.GetService<IConstantsHelper>();
var result = lookupService.GetAll<State>().Select(x => new SelectListItem
{
Value = x.Id.ToString(),
Text = x.Text,
Selected = selectedId.HasValue && selectedId == x.Id
}).OrderBy(x => x.Text).ToList();
result.Insert(0, new SelectListItem { Value = "", Text = "Select state...", Disabled = true, Selected = result.Any(x => !x.Selected)});
return result;
}
您可以從下拉列表中選擇它的工作原理,再向下打開下拉列表,選擇相同的項目,並將其重置爲空?你能解釋更多... – Emad
**多於一次的相同值,下拉正在重置**請問您能詳細說明一下嗎? – Shyju
如果你把'@(Model.Pat.StateId)'放在某處,它是否顯示你期望的值? –