C# auto detect proxy settings

Question

C# 2008 SP1

I am using the code to detect if a proxy has been set under \"Internet Options\". If there is a proxy then I will set this in my webclient.

So I

Answer 1

Try the following:

public string GetMeMyInfo(string searchCriteria)
{
    // Instatiate the web service and declare the necessary variables
    WsService.WsServiceBus oWsGetInfo = new WsService.WsServiceBus();
    // Configure the Web Service Proxy
    oWsGetInfo.Proxy = System.Net.WebProxy.GetDefaultProxy();
    oWsGetInfo.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
    // Invoke the web service
    return oWsGetInfo.GetInfo4Me(searchCriteria);
}

That will get the default proxy setting and credentials before invoking your web service for example.

Answer 2

This works for me

        var proxy = WebRequest.GetSystemWebProxy();
        Uri testUrl = new Uri("http://proxy.example.com");
        var proxyUrl = proxy.GetProxy(testUrl);
        if (proxyUrl != testUrl)
            //Use your proxy here
        else
            //We are not using a proxy