Question

我试图使用由两组两个单选按钮组成的表单进行发布，用于排序：Name/Rating和Asc/Desc使用它们，我想将2个布尔值发送给行动，但它不起作用。它是发布，但值没有通过，默认值总是传递。这里的问题是什么？

查看广播组：

<form action="../Restaurant/RestaurantsSort" method="post" class="btn-group" style="margin-top: 10px;">

     // First radio group:  Name / Rating
    <div class="btn-group btn-group-toggle" data-toggle="buttons">
        <label class="btn btn-secondary active">
            <input type="radio" name="name" id="name" autocomplete="off" value=1 checked> <span class="glyphicon glyphicon-font"></span>Name
        </label>
        <label class="btn btn-secondary">
            <input type="radio" name="name" id="name" autocomplete="off" value=0> <span class="glyphicon glyphicon-star"></span>Rating
        </label>
    </div>

     // Second radio group:  Asc / Desc
    <div class="btn-group btn-group-toggle" data-toggle="buttons">
        <label class="btn btn-secondary active">
            <input type="radio" name="asc" id="asc" autocomplete="off" value=1 checked><span class="glyphicon glyphicon-arrow-up"></span> Asc
        </label>
        <label class="btn btn-secondary">
            <input type="radio" name="asc" id="asc" autocomplete="off" value=0><span class="glyphicon glyphicon-arrow-down"></span> Desc
        </label>
    </div>

    <input type="submit" id="list" class="btn btn-default btn-sm" value="Sort" style="margin-top: 5px;"/>

</form>

被召唤的行动：

// name is always true, asc is always true
[HttpPost]
public ActionResult RestaurantsSort(bool name = true, bool asc = true)
{
    List<Restaurant> r = new List<Restaurant>();
    switch (name)
    {
        case true:
            switch (asc)
            {
                case true:
                    r = Restaurant.GetRestaurants("restaurants", "sortby", "name", "asc");
                    break;
                case false:
                    r = Restaurant.GetRestaurants("restaurants", "sortby", "name", "desc");
                    break;
            }
            break;
        case false:
            switch (asc)
            {
                case true:
                    r = Restaurant.GetRestaurants("restaurants", "sortby", "rating", "asc");
                    break;
                case false:
                    r = Restaurant.GetRestaurants("restaurants", "sortby", "rating", "desc");
                    break;
            }
            break;
    }
    TempData["restaurants"] = r;
    return RedirectToAction("Restaurants");
}

Answer 1

您的单选按钮的值为0和1。您无法将其中任何一个值绑定到bool，该值接受true或false的值。

将单选按钮更改为

<input type="radio" name="name" id="name" autocomplete="off" value="true" checked />
<input type="radio" name="name" id="name" autocomplete="off" value="false" />

并同意asc组。

但是你应该做的是拥有一个带属性的视图模型

public bool Name { get; set; }
public bool Asc { get; set; }

并使用强类型HtmlHelper方法正确生成html

@Html.RadioButtonFor(m => m.Name, true, new { id = "" })
@Html.RadioButtonFor(m => m.Name, false, new { id = "" })

虽然名为Name的属性应该是string或enum而不是bool。

表单中的单选按钮值未传递给操作（mvc）

1 个答案: