在DropDownList ASP.NET MVC中获取所选项目

Question

我知道如何获取DropDownList的选定值有多个线程.但是我找不到从控制器的局部视图中获取此值的正确方法.

这是我的部分观点:

@model List<aptest.Models.answer>

@Html.DropDownList("dropdownlist", new SelectList(Model, "text", "text"))
<button type="submit">next</button>

Answer 1

要获取下拉值,请将选择列表包装在表单标记中.使用模型和DropDownListFor帮助器

剃刀视图

@model MyModel

@using (Html.BeginForm("MyController", "MyAction", FormMethod.Post)
{
   @Html.DropDownListFor(m => m.Gender, MyModel.GetGenderValues())
   <input type="submit" value="Send" />
}

控制器和其他类

public class MyController : Controller 
{
    [HttpPost]
    public ActionResult MyAction(MyModel model)
    {
        // Do something

        return View();
    }
}

public class MyModel
{
    public Gender Gender { get; set; }

    public static List<SelectListItem> GetGenderValues()
    {
        return new List<SelectListItem> 
        {
            new SelectListItem { Text = "Male", Value = "Male" };
            new SelectListItem { Text = "Female", Value = "Female" };
        };
    }
}

public enum Gender 
{
    Male, Female
}

如果您使用局部视图,只需将模型传递给它:

@Html.Partial("MyPartialView", Model)