布尔模型MVC中4绑定问题 [英] Boolean model binding issue in Mvc 4
问题描述
我要绑定一个布尔属性来隐藏输入控制器,但输出HTML code是错误
I want to bind a boolean property to a hidden input controller, but the output html code was error
code如下:
public class TestModel
{
public bool IsOk { get; set; }
public bool IsSuccess { get; set; }
}
public class HomeController : Controller
{
public ActionResult Index()
{
return View(new TestModel { IsOk = false, IsSuccess = true });
}
}
<h2>Index</h2>
<p>@Model.IsOk</p>
<p>
<input type="hidden" value="@Model.IsOk" />
</p>
<p>
<input type="hidden" value="@Model.IsSuccess" />
</p>
HTML输出
<h2>Index</h2>
<p>False</p> //works
<p>
<input type="hidden" /> //where is value?
</p>
<p>
<input type="hidden" value="value" /> //wath's this?
</p>
但是,如果我使用的ToString(),以上所有工作得很好,所以这是我的错?
But if i use ToString(), all above works well, so is it my mistake?
推荐答案
在HTML,当你有哪些功能是作为一个属性的开/关或真/假开关您删除属性,当属性是关闭/假,并添加具有相同的值作为属性名属性时,属性是上/真。剃刀为您提供为你已经经历过的功能。
In HTML when you have an attribute which functions as an on/off or true/false switch you remove the attribute when the attribute is off/false and add the attribute with the same value as the attribute name when the attribute is on/true. Razor provides you with that functionality as you have already experienced.
也许你打算在视图中使用 Html.HiddenFor
?
Perhaps you intend to use Html.HiddenFor
in the view?
<p>
@Html.HiddenFor(m => m.IsOk)
</p>
<p>
@Html.HiddenFor(m => m.IsSuccess)
</p>
这会产生这个HTML,你必须值=FALSE
和值=真
为你预计:
This will produce this HTML where you have value="False"
and value="True"
as you expect:
<p>
<input data-val="true" data-val-required="The IsOk field is required."
id="IsOk" name="IsOk" type="hidden" value="False" />
</p>
<p>
<input data-val="true" data-val-required="The IsSuccess field is required."
id="IsSuccess" name="IsSuccess" type="hidden" value="True" />
</p>
此外,模型绑定就能往返您查看模型属性。
Also, the model binder will be able to round-trip you view model properties.
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