SelectList未从List <string> </string>中选择默认值

Question

我开始对此感到非常恼火，但无论怎样，我都无法让SelectedValue为SelectList工作。

这是我的代码：

List<string> PickupTimeList = EntityLogic.PopulateTimeSlots(vm.DateMileage.PickupDate,
    vm.DateMileage.PickupDate.AddHours(-2), vm.DateMileage.PickupDate.AddHours(2).AddMinutes(15));

ViewBag.PickupTimeList = new SelectList(PickupTimeList, "11:00 PM");

我这里没有文本/键值，因为Text / Key也是一个字符串和相同的东西。无论如何，通过这段代码，它仍然没有选择“11:00 PM”作为默认项目。

我该怎么做才能解决这个问题？

Answer 1

试试这样：

var pickupTimeList = EntityLogic.PopulateTimeSlots(
    vm.DateMileage.PickupDate,
    vm.DateMileage.PickupDate.AddHours(-2), 
    vm.DateMileage.PickupDate.AddHours(2).AddMinutes(15)
)
.Select(x => new SelectListItem
{
    Value = x,
    Text = x,
});

ViewBag.PickupTimeList = new SelectList(PickupTimeList, "Value", "Text", "11:00 PM");