问题
When trying to invoke a method on an external webservice (over the Internet) it throws me "The remote server returned an error: (407) Proxy Authentication Required."
To solve this, I used the following code to set the proxy we use in the office:
//Set the system proxy with valid server address or IP and port.
System.Net.WebProxy pry = new System.Net.WebProxy("MyHost", 8080);
//The DefaultCredentials automically get username and password.
pry.Credentials = System.Net.CredentialCache.DefaultCredentials;
System.Net.WebRequest.DefaultWebProxy = pry;
That works fine, but now... I need to do that "less harcoded" trying to get the information from my system instead of setting that manually.
回答1:
This will use whatever the default proxy is for IE I believe (not deprecated):
Services.MyService service = new Services.MyService();
service.UseDefaultCredentials = true;
service.Proxy = new System.Net.WebProxy();
service.Proxy.Credentials = service.Credentials;
回答2:
System.Net.WebProxy.GetDefaultProxy() although VS cautions its been deprecated.
来源：https://stackoverflow.com/questions/284511/get-proxy-configuration-before-accessing-an-external-webservice-net-2-0