复选框不适用于布尔视图模型属性 [英] Checkbox not working with boolean viewmodel property

问题描述

我正在使用MVC6，并且我的表单中有一个复选框输入字段，但是提交表单时，复选框的值总是以false的形式传递给ViewModel:

I am using MVC6 and have a checkbox input field in my form, but when the form is submitted the value for the checkbox always gets passed to the ViewModel as false:

以下是在我的ViewModel中声明属性的方式:

[Display(Name = "Include Sales Tax")]
public bool IncludeSalesTax { get; set; }

以下是该表单在我的MVC6剃须刀表单中的外观:

<div class="form-group">
    <div class="checkbox">
        <label><input asp-for="IncludeSalesTax" type="checkbox" value="">@Html.DisplayNameFor(m => m.IncludeSalesTax)</label>
    </div>
</div>

我认为以上是遵循Twitter Bootstrap标准并使用ASP.NET MVC6 asp-for标签进行模型绑定的最佳方法.

I figured the above would be the best way to follow Twitter Bootstrap standards and use the ASP.NET MVC6 asp-for tag for model binding.

当我提交表单时，即使已选中，IncludeSalesTax的值也始终为false.我在做什么错了?

When I submit the form the value for IncludeSalesTax is always false, even when checked. What am I doing wrong?

推荐答案

在让Visual Studio根据我的ViewModel生成表单之后，下面是它的操作方法:

After letting Visual Studio generate the form based on my ViewModel here is how it does it:

        <div class="checkbox">
            <input asp-for="isTaxable" />
            <label asp-for="isTaxable"></label>
        </div>

此外，我缺少输入标签的关闭.因此，也可以这样进行，这是引导程序的首选方式:

Additionally, I was missing the closing of my input tag. So it can also be done like this which is the bootstrap preferred way:

<label><input asp-for="isTaxable" type="checkbox" value=""/>@Html.DisplayNameFor(m => m.isTaxable)</label>

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