将Dictionary转换为url参数字符串? [英] Convert a Dictionary to string of url parameters?
问题描述
是否可以将代码中的Dictionary转换为url参数字符串?
Is there a way to convert a Dictionary in code into a url parameter string?
例如
// An example list of parameters
Dictionary<string, object> parameters ...;
foreach (Item in List)
{
parameters.Add(Item.Name, Item.Value);
}
string url = "http://www.somesite.com?" + parameters.XX.ToString();
在MVC HtmlHelpers内部,您可以使用UrlHelper(或控制器中的Url)生成URL,但是在Web窗体代码中,此HtmlHelper后面不可用.
Inside MVC HtmlHelpers you can generate URLs with the UrlHelper (or Url in controllers) but in Web Forms code-behind the this HtmlHelper is not available.
string url = UrlHelper.GenerateUrl("Default", "Action", "Controller",
new RouteValueDictionary(parameters), htmlHelper.RouteCollection ,
htmlHelper.ViewContext.RequestContext, true);
在没有MVC帮助器的情况下,如何在C#Web窗体代码隐藏(在MVC/Web窗体应用程序中)中完成此操作?
How could this be done in C# Web Forms code-behind (in an MVC/Web Forms app) without the MVC helper?
推荐答案
一种方法是:
var url = string.Format("http://www.yoursite.com?{0}",
HttpUtility.UrlEncode(string.Join("&",
parameters.Select(kvp =>
string.Format("{0}={1}", kvp.Key, kvp.Value)))));
您还可以使用C#6中引入的字符串插值:
You could also use string interpolation as introduced in C#6:
var url = $"http://www.yoursite.com?{HttpUtility.UrlEncode(string.Join("&", parameters.Select(kvp => $"{kvp.Key}={kvp.Value}")))}";
如果您不需要它,可以摆脱 UrlEncode
,我只是为了完整性而添加了它.
And you could get rid of the UrlEncode
if you don't need it, I just added it for completeness.
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