asp.net-mvc - ListBoxFor 的 MVC Razor 两级模型

Question

视图中有没有办法向下钻取一层以获取 GenericValues 中的数据对象？我知道我可以更改模型以使其工作，但我不想添加额外的模型类？

看法

<div class="form-group row">
     @Html.LabelFor(model => model.selectedLanguage)
     @Html.ListBoxFor(
           x => x.selectedLanguage,
           new SelectList(Model.ListOfLanguages, "Value.Value", "Value.Name"),
           new { id = "multiselectLanguage", @class = "form-control" })
</div>

模型

public List<LanguageModel> ListOfLanguages { get; set; }

    public class LanguageModel
    {
        public string ISOCode { get; set; }
        public GenericValues Values { get; set; }
    }

public class GenericValues
    {
        public string Name { get; set; }
        public int Value { get; set; }
    }

Answer 1

您可以使用 linq 获取list<GenericValues>：

@Html.ListBoxFor(
          x => x.selectedLanguage,
          new SelectList(Model.ListOfLanguages.Select(x => x.Values).Distinct(), "Value", "Name"),
          new { id = "multiselectLanguage", @class = "form-control" })