Question

如何为此viewmodel使用dropdownlistfor？

public class ViewModel
{
    public IEnumerable<Model1> model1{ get; set; }
}

    public class Model1
{
    public string Name { get; set; }
    public int Id{ get; set; }
}

我该怎么做？

@model Models.ViewModels.ViewModel
@Html.DropDownListFor(model => model.model1)

Answer 1

您可以将选定的ID放入viewmodel。

public class ViewModel
{
    public IEnumerable<SelectListItem> Model1Items{ get; set; }
    public int SelectedId { get; set; }
}
public class Model1{
    public int Id {get; set;}
    public string Name {get; set;}
}

在控制器中：

var items = (from m in db.Model1s
             select new SelectListItem{
                 Value = m.Id,
                 Text = m.Name
             }); // This is where you bind your Model1 to the dropdownlist

// Add a default id-name pair as needed.
YourViewModel.Model1Items = new SelectList(items.ToList(), "Value", "Text");

在视图中：

@Html.DropDownListFor(model => model.SelectedId, Model.Model1Items)

使用dropdownlistfor为具有list属性的模型

1 个答案: