如何确定在 C# ASP.NET CORE MVC 5.0 中选择了哪个单选按钮

Question

我想检查从我的Index.cshtml 文件中选择了哪个单选按钮，然后我想使用 switch 语句为其对象设置属性。我正在阅读如何执行此操作，但其中大多数是针对 Windows 窗体中的组，但这不适用于我，因为我使用的是 asp.net core 5.0 web mvc 项目。

在我的Index.cshmtl 我有以下内容：

....
<form action="@Url.Action("SecIndex", "Second")">

    <input type="radio" value="1" /><label>Valid</label>
    <input type="radio" value="2" /><label>Wrong</label>
    <input type="radio" value="3" /><label>InValid</label>
    <input type="submit" value="Address Validation" />

</form>

然后在我的HomeController，我有以下方法：

        [HttpPost]
        public IActionResult ValidateAddress()
        {
            // if radio button was checked, perform the following var request.


            var check = ""; // this should be able to grab the label of the button that was selected

            switch (check)
            {
                case "Valid":
                   var request = new AddressRequest
                    {
                        StatusCode = 1,
                        Address = "2018 Main St New York City, NY, 10001"
                    };
                    break;
                case "Wrong":
                    var req = new AddressRequest
                    {
                        StatusCode = 2,
                        Address = "91 Apple City Galveston, TX, 77550"
                    };
                    break;
                case "Invalid":
                    var addressRequest = new AddressRequest
                    {
                        StatusCode = 3,
                        Address = "00000 Tree Ln, Miami FL 91041"
                    };
                    break;
            }

            return View();
        }

但我似乎无法弄清楚如何允许变量 check 执行检查以查看选择了哪个单选按钮，因为这是一个 asp.net core 5.0 web mvc 项目而不是 Windows 窗体。有没有办法在这种类型的项目中做到这一点？

---

更新：

所以我意识到我希望拥有与以前一样的价值与数字。所以实现这个建议，我仍然需要将用户重定向到我的Second 控制器中的SecIndex 方法。但是，我仍然需要获取选中的单选按钮的值。所以我尝试做return RedirectToAction("SecIndex");，但是当我运行程序并点击按钮来验证它给了我：

此页面无法正常工作。如果问题仍然存在，请联系网站所有者。 HTTP 错误 405

我做错了什么吗？ URI 显示为https://localhost:5443/Home/ValidateAddress?Status=1。不是我选择了第一个选项，它应该给我状态为 1。不知道为什么它会返回。

在我的HomeController里面：

       [HttpPost]
        public IActionResult ValidateAddress(string validate)
        {
            // if radio button was checked, perform the following var request.

            switch (validate)
            {
                case "Valid":
                   var request = new AddressRequest
                    {
                        StatusCode = 1,
                        Address = "2018 Main St New York City, NY, 10001"
                    };
                    break;
                case "Wrong":
                    var req = new AddressRequest
                    {
                        StatusCode = 2,
                        Address = "91 Apple City Galveston, TX, 77550"
                    };
                    break;
                case "Invalid":
                    var addressRequest = new AddressRequest
                    {
                        StatusCode = 3,
                        Address = "00000 Tree Ln, Miami FL 91041"
                    };
                    break;
            }

            return RedirectToAction("SecIndex");
        }

    }

Home View... index.cshtml:

<form action="@Url.Action("ValidateAddress", "Home")">

    <input type="radio" value="1" name="Status"/><label>Valid</label>
    <input type="radio" value="2" name="Status"/><label>Wrong</label>
    <input type="radio" value="3" name="Status"/><label>InValid</label>
    <input type="submit" value="Address Validation" />

</form>

Answer 1

给单选按钮一个通用名称并将标签文本分配给单选按钮的值。

将Index.cshmtl 更改为：

<form method="post" action="/DemSecondo/ValidateAddress">
    <input type="radio" value="Valid" name="myRadio" /><label>Valid</label>
    <input type="radio" value="Wrong" name="myRadio" /><label>Wrong</label>
    <input type="radio" value="InValid" name="myRadio" /><label>InValid</label>
    <input type="submit" value="Address Validation" />
</form>

并将ValidateAddress 操作更改为：

[HttpPost]
public IActionResult ValidateAddress(string myRadio)
{
    switch (myRadio)
    {
        case "Valid":
          var request = new AddressRequest
          {
              StatusCode = 1,
              Address = "2018 Main St New York City, NY, 10001"
          };
          break;
        case "Wrong":
          var req = new AddressRequest
          {
              StatusCode = 2,
              Address = "91 Apple City Galveston, TX, 77550"
          };
          break;
        case "Invalid":
          var addressRequest = new AddressRequest
          {
              StatusCode = 3,
              Address = "00000 Tree Ln, Miami FL 91041"
          };
          break;
     }

     return RedirectToAction("SecIndex");
}