如何确定(优雅地)在 C# winforms 应用程序中是否需要代理身份验证 [英] How do I determine (elegantly) if proxy authentication is required in C# winforms app

问题描述

我的用例是这样的，我想调用一个网络服务，如果我在需要身份验证的代理服务器后面，我只想使用默认凭据...

My use case is this, I want to call out to a webservice and if I am behind a proxy server that requires authentication I want to just use the default credentials...

  WebRequest.DefaultWebProxy.Credentials = CredentialCache.DefaultCredentials;

否则我只会简单地进行调用，最好预先确定是否需要身份验证，而不是在我尝试进行调用后处理异常.

Otherwise I'll just simply make the call, It would be very nice to determine if the auth is required up front, rather than handle the exception after I attempt to make the call.

想法?

推荐答案

System.Net.WebProxy 有一个名为 UseDefaultCredentials 的属性，可能成为你想要的(但我不得不承认这里有点无知).相关文档的链接位于此处.

System.Net.WebProxy has a property called UseDefaultCredentials that may be what you want (but I have to admit a bit of ignorance here). The link to the relevant documentation is here.

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