MVC 4自定义模板的布尔（剃刀）

问题描述

我使用Twitter的引导框架，因此得到EditorFor和DisplayFor方法来输出我需要什么，我创建自定义模板，每个为我登录页面我想了rememberMe像字符串，文本，密码等类型的布尔，所以和以前一样，我创建了下面的模板，并把在Boolean.cshtml：

I am using the twitter bootstrap framework, so to get the EditorFor and DisplayFor methods to output what I need, I created custom templates for each of the types like string, text, password etc. For my login page I want a RememberMe bool, so as before, I created the following template and put in in Boolean.cshtml:

@model bool

<div class="control-group">
    <div class="controls">
        <label class="checkbox">
            @Html.CheckBoxFor(m => m, new {@class = "checkbox"})
            @Html.LabelFor(m => m)
        </label>
    </div>
</div>

pretty的简单，但是当我使用：

Pretty simple, but when I use:

@Html.EditorFor(m => m.RememberMe)

我得到一个异常说价值被bassed不能为空：

I get an exception saying the value being bassed cannot be null:

The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.Boolean'.

我在想什么？好像它应该是直线前进。模型对象在球场上看起来如下：

What am I missing? Seems like it should be straight forward. The field on the model object looks like follows:

[Display(Name = "Remember me?")]
public bool RememberMe { get; set; }

感谢。

更新：如此看来，到底是创建一个空的视图模型对象，并将其传递给视图，而不是让MVC创建一个它自己的事

UPDATE: So it seems that in the end it's a matter of creating an empty view model object and passing it to the view instead of letting MVC create one on it's own.

推荐答案

我不会那样做。如果该值可以为空，我会确保您的编辑器模板有可空布尔的型号。所以你的编辑器模板（在视图中\共享\ EditorTemplates \ Boolean.cshtml）将是：

I would not do it that way. If the value can be null, I would make sure that your editor template has nullable boolean as the model type. So your editor template (in Views\Shared\EditorTemplates\Boolean.cshtml) would be:

@model Boolean?

@Html.CheckBox("", Model.HasValue && Model.Value)

，然后在主视图的剃须刀，你可以有：

And then in the razor of your main view, you could have:

<div class="control-group">
    <div class="controls">
        <label class="checkbox">
            @Html.EditorFor(m => m, new {@class = "checkbox"})
            @Html.LabelFor(m => m)
        </label>
    </div>
</div>

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