与多值键创建RouteValueDictionary [英] Create RouteValueDictionary with multivalued keys
本文介绍了与多值键创建RouteValueDictionary的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想返回一个 RedirectToRouteResult
发送用户像下面这样的URL:
I'd like to return a RedirectToRouteResult
that sends users to a URL like the following:
/MyController/MyAction/id?newid=3&newid=5&newid=7
的 NEWID
参数有几个值。
我的电话如下:返回RedirectToAction(的String.Empty,routeValues);
下面是我到目前为止已经试过,并且不工作:
Here is what I have tried so far, and that do not work:
// ...?newid%5B0%5D=3&newid%5B1%5D=5&newid%5B2%5D=7
var routeValues = new RouteValueDictionary {
{"id", myid},
{"newid[0]", 3},
{"newid[1]", 5},
{"newid[2]", 7},
};
// ...?newid=System.Int32%5B%5D
var routeValues = new { id = myid, newid = new int[] { 3, 5, 7 } };
// ...?newid=System.String%5B%5D
var routeValues = new { id = myid, newid = new string[] { "3", "5", "7" } };
// ...?newid=System.Int32%5B%5D
var routeValues = new RouteValueDictionary {
{"id", myid},
{"newid", new int[] { 3, 5, 7 } }
};
什么是做这项工作的秘诀是什么?
What is the secret to make this work?
推荐答案
这是一件事,真的从框架遗漏。最好的办法是手动滚吧:
That's one thing that's really missing from the framework. Your best bet is to manually roll it:
public ActionResult Foo()
{
var ids = new[] { 3, 5, 7 };
var url = new UriBuilder(Url.Action("MyAction", "MyController", new { id = "123" }, Request.Url.Scheme));
url.Query = string.Join("&", ids.Select(x => "newid=" + HttpUtility.UrlEncode(x.ToString())));
return Redirect(url.ToString());
}
把这个变成一个自定义的扩展方法可能会增加课程的可读性。
Putting this into a custom extension method could increase the readability of course.
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