有没有什么办法可以绑定一个复选框列表在asp.net模型MVC [英] Is there any way to bind a checkbox list to a model in asp.net mvc

问题描述

我期待在这里找到一个快速简便的方法，当回发发生在模型绑定复选框列表项的列表。

I am looking here to find a quick and easy way to bind a list of checkbox list items when the postback occurs in the model.

显然，现在就这样做了常用的方法似乎不喜欢这样 form.GetValues​​（的CheckBoxList）[0]。载（真）; 这看起来不好受，而不是完全安全的。

Apparently the common way to do it now seems to do it like this form.GetValues("checkboxList")[0].Contains("true"); It seems painfull and not exactly safe.

有没有办法绑定复选框的列表（被带或不带视图的助手创建），或该数据甚至阵列中的的UpdateModel（myViewModel，form.ToValueProvider事项（））; 阶段这将填充一个的IList＆LT;字符串＆GT; 或的String [] 内部模型的

Is there a way to bind a list of checkbox (that are created with or without an helper in the view) or even an array of data for that matters during the UpdateModel(myViewModel, form.ToValueProvider()); phase which would populate an IList<string> or string[] inside of the model ?

推荐答案

您可以从一个模型：

public class MyViewModel
{
    public int Id { get; set; }
    public bool IsChecked { get; set; }
}

然后控制器：

then a controller:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        var model = new[] 
        {
            new MyViewModel { Id = 1, IsChecked = false },
            new MyViewModel { Id = 2, IsChecked = true },
            new MyViewModel { Id = 3, IsChecked = false },
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(IEnumerable<MyViewModel> model)
    {
        // TODO: Handle the user selection here
        ...
    }
}

视图（〜/查看/首页/的Index.aspx ）：

<% using (Html.BeginForm()) { %>
    <%=Html.EditorForModel() %>
    <input type="submit" value="OK" />
<% } %>

最后一个相应的编辑模板：

And finally a corresponding editor template:

<%@ Control 
    Language="C#"
    Inherits="System.Web.Mvc.ViewUserControl<AppName.Models.MyViewModel>" %>
<%= Html.HiddenFor(x => x.Id) %>
<%= Html.CheckBoxFor(x => x.IsChecked) %>

现在，当您在POST动作提交表单，你会得到选定值的列表以及它们的ID。

Now when you submit the form in the POST action you will get the list of selected values along with their id.

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