Question

I want to set a proxy in C#.NET, the thing is, how would I make it so that all web requests and web browser controls connect through the proxy? Like a SOCKS proxy?

I need it to apply to any web browser controls or any web requests. It would be best if I could just set it so all outgoing requests from the user’s machine is sent through the proxy.

Answer 1

By default, your C# code will use the system proxy set in your IE connection settings.

If you want to be explicit, you can do it via config under System.net:

<defaultProxy useDefaultCredentials="true">
    <proxy usesystemdefault="true" proxyaddress="[proxy address]" bypassonlocal="true" />
</defaultProxy>

Programmatically, you can set the proxy:

http://msdn.microsoft.com/en-us/library/system.net.webproxy.aspx

WebProxy proxyObject = new WebProxy("http://proxyserver:80/",true);
WebRequest req = WebRequest.Create("http://www.contoso.com");
req.Proxy = proxyObject;

EDIT:
For web browser control, try this SO post: (disclaimer – haven’t tried that)

How to set a proxy for Webbrowser Control without effecting the SYSTEM/IE proxy