的CheckBoxList多重选择：难度模型绑定回 [英] CheckBoxList multiple selections: difficulty in model bind back

问题描述

我有一个类如下：

 public class UserRoleModel
{
    public string Role { get; set; }
    public bool UserRole { get; set; }
}

和公共UserRoleModel [] {的UserRole获取;组; }

我的控制器如下：

 public ActionResult CreateUser()
     {
         UserDetailsModel model = new UserDetailsModel();
         return View(model);
     }

     [HttpPost]
     public ActionResult CreateUser(UserDetailsModel model)
     {

         return View(model);
     }

---

在我看来，我有

---

In my view I am having

    >@foreach (var item in Model.UserRoles)      
    { 

    name = "UserRoles"+ ".Value["+ i + "]"; 
    id= "UserRoles" + "_Value[" + i++ + "]";
    selected = item.UserRole ? "checked=\"checked\"" : ""; 

        <p>
        <input type="checkbox" name="@name" id="@id" @selected value="true" /> 
        <label for="@id">@item.Role</label> 
        <input type="hidden" name="@name" value="false" /> 
        </p> 
  } 

尽管被我认为相应的显示值，没有模型绑定回的UserRole。我在想什么或者有没有更好的和更清洁的方法是什么？

Despite the values being displayed accordingly in my view, there is no model bind back for UserRoles. What am I missing or is there any better and cleaner method?

推荐答案

这种事情是很好用的编辑模板来实现的。他们还避免你从你的看法写面条code。例如：

Those kind of things are nicely achieved with editor templates. They also avoid you from writing spaghetti code in your views. Example:

型号：

public class UserDetailsModel
{
    public IEnumerable<UserRoleModel> Roles { get; set; }
}

public class UserRoleModel
{
    public string Role { get; set; }
    public bool UserRole { get; set; }
}

控制器：

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(new UserDetailsModel
        {
            // Fill with some dummy stuff
            Roles = Enumerable.Range(1, 5).Select(x => new UserRoleModel
            {
                Role = "role " + x,
                UserRole = false
            })
        });
    }

    [HttpPost]
    public ActionResult Index(UserDetailsModel model)
    {
        return View(model);
    }
}

查看（〜/查看/主页/ Index.cshtml ）

@model AppName.Models.UserDetailsModel
@using (Html.BeginForm())
{ 
    @Html.EditorFor(x => x.Roles)
    <input type="submit" value="OK" />
}

编辑模板（〜/查看/主页/ EditorTemplates / UserRoleModel.cshtml ）

@model AppName.Models.UserRoleModel
@Html.CheckBoxFor(x => x.UserRole)
@Html.LabelFor(x => x.Role, Model.Role)
@Html.HiddenFor(x => x.Role)

现在这就是我所说的清洁材料。

Now that's what I call clean stuff.

这篇关于的CheckBoxList多重选择：难度模型绑定回的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！