找不到WebClient [英] WebClient could not be found

问题描述

我已经在Stack Overflow（和google）上进行了搜索，但是找不到解决我问题的具体答案。

I've already search on Stack Overflow (and google), but can't find the specific answer that solves my problem.

我想阅读一些内容页面外。我尝试使用 Webclient ，但这给了我这个错误：

I want to read some content out of a page. I've tried to use Webclient, but that gives me this error:

找不到类型或名称空间名称 WebClient（即您
缺少using指令还是程序集引用？）

The type or namespace name 'WebClient' could not be found (ae you missing a using directive or an assembly reference?)

我尝试在Google上搜索如何解决此错误，但没有找到正确的答案（我也尝试过 HttpClient ，结果相同）。

I've tried to search on google how to solve this error, but didn't find a correct answer (I've also tried HttpClient, same result).

我如何确保获得他特定页面的内容？

How do I make sure that I get the content of his specific page?

顺便说一句，这就是我的意思现在有：

Btw, this is what I have right now:

WebClient client = new WebClient();
// Use google as test page
string downloadString = client.DownloadString("http://www.gooogle.com");

我正在使用Visual Studio 2015社区和ASP.Net v5

And I'm using Visual Studio 2015 Community and ASP.Net v5

推荐答案

确保在项目中引用了 System.dll 。

Make sure you have reference to System.dll in your project.

也可以使用System.Net包含； 到您打算在其中的源代码的usings指令部分使用 WebClient 或使用其完全限定的名称，即：

Also either include using System.Net; to usings directive section of the source code where you're planning to use WebClient or use its fully-qualified name, i.e.:

var client = new System.Net.WebClient()

这篇关于找不到WebClient的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！