来自简单列表模型的DropDownListFor

Question

如何在没有Id的情况下实现简单的DropDownList。

public AddItemModel() 
{
    Types = new SelectList(new []{"Type1", "Type2", "Type3"});
}

public SelectList Types { get; set; }

@Html.DropDownListFor(x => x.AddItem, ???

Answer 1

您需要在视图模型上使用属性来保存所选值，然后您可以尝试：

public AddItemModel() 
{
    var data = new [] { "Type1", "Type2", "Type3" };
    Types = data.Select(x => new SelectListItem
    {
        Value = x,
        Text = x,
    });
}

public IEnumerable<SelectListItem> Types { get; set; }
public string SelectedType { get; set; }

然后在你看来：

@Html.DropDownListFor(x => x.SelectedType, Model.Types)