问题描述

我正在为 DropDown 创建一个表单，如下所示:

I'm creating a form for a DropDown like this:

@{
    Html.BeginForm("View", "Stations", FormMethod.Get);
}
@Html.DropDownList("id", new SelectList(ViewBag.Stations, "Id", "Name"), new { onchange = "this.form.submit();" })
@{
    Html.EndForm();
}

如果我从下拉列表中选择一个值，我会被重定向到正确的控制器，但 URL 不是我想要的:

If I choose a value from my dropdown I get redirected to the correct controller but the URL is not as I would like to have it:

/Stations/View?id=f2cecc62-7c8c-498d-b6b6-60d48a862c1c

/Stations/View?id=f2cecc62-7c8c-498d-b6b6-60d48a862c1c

我想要的是:

/Stations/View/f2cecc62-7c8c-498d-b6b6-60d48a862c1c

/Stations/View/f2cecc62-7c8c-498d-b6b6-60d48a862c1c

那么如何将 id= 查询字符串参数替换为我想要的更简单的 URL 方案?

So how do I get the id= querystring parameter replaced by the more simple URL Scheme I want?

推荐答案

带有 FormMethod.Get 的表单将始终将其表单控件的值作为查询字符串值回发.浏览器无法根据您的路由配置生成 url，因为它们是服务器端代码.

A form with FormMethod.Get will always post back the values of its form controls as query string values. A browser cannot generate a url based on your route configurations because they are server side code.

如果您真的想生成 /Stations/View/f2cecc62-7c8c-498d-b6b6-60d48a862c1c，那么您可以使用 javascript/jquery 构建自己的 url 并重定向

If you really wanted to generate /Stations/View/f2cecc62-7c8c-498d-b6b6-60d48a862c1c, then you could use javascript/jquery to build your own url and redirect

@using (Html.BeginForm("View", "Stations", FormMethod.Get))
{
    @Html.DropDownList("id", new SelectList(ViewBag.Stations, "Id", "Name"))
}

var baseUrl = '@Url.Action("View", "Stations")';
$('#id').change(function() {
    location.href = baseUrl + '/' $(this).val();
});

附注:在 .change() 事件上提交不是预期的行为，并且会使用户感到困惑.建议您添加一个按钮让用户进行选择，检查它然后提交表单(处理按钮的 .click() 事件而不是下拉列表的 .change() 事件)

Side note: Submitting on the .change() event is not expected behavior and is confusing to a user. Recommend you add a button to let the user make their selection, check it and then submit the form (handle the button's .click() event rather that the dropdownlist's .change() event)

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