The proxy requires authentication in windows form application

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Hi,

Does anyone know how I can set up a system wide proxy in Windows 7 and XP?
I have a windows form project in C# that uses web service via internet.
in my system it works correctly. But in another system with proxy it doesn't connect to web service! Althogh the browsers in this system connect correctly.

The proxy requires authentication so each browser that needs to access the internet must have the username and password entered into it. This is fine for browsers, but my C# application can't access the internet .

I set this code in app.config of my project:

XML

<system.net>
    <defaultProxy useDefaultCredentials="true" />
  </system.net>

please help me.

Posted 18-Apr-15 20:02pm

Zon-cpp

Updated 18-Apr-15 20:03pm

v2

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2 solutions

Solution 1

Obviously default credentials can't go through the proxy...
You have two options:
1. Add a DLL that does the authentication via module element: https://msdn.microsoft.com/en-us/library/6w93fssz(v=vs.110).aspx[^]...The DLL must contain a class implementing IWebProxy[^]

2. Do all the proxy from your code:

C#

WebProxy oWebProxy = new WebProxy("proxy-server-address", true);
oWebProxy.Credientials = new NetworkCredential("user-name", "password");

WebRequest oWebRequest = WebRequest.Create("address");
oWebRequest.Proxy = oWebProxy;

// do the rest of the request...

Posted 18-Apr-15 20:59pm

Kornfeld Eliyahu Peter

Comments

Zon-cpp 19-Apr-15 3:09am

i don't have a 'web service' project! or a 'web client' with some web requests...

I have a 'Windows Form' project in C# that add web reference and I call functions of web service that is added.

But connection with web service has a problem via proxy with user and password.

Kornfeld Eliyahu Peter 19-Apr-15 3:12am

In that case the only option you have is option 1...

Zon-cpp 19-Apr-15 3:28am

ok, I 'll try it and tell you the result. Thank you.
can you get me a simple project that uses that Dll ?

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Zon-cpp · Accepted Answer · 2015-04-19T22:15:00

Solution 2

This solution is realy great :

http://stackoverflow.com/questions/186800/is-it-possible-to-specify-proxy-credentials-in-your-web-config[^]

Posted 19-Apr-15 22:15pm

Zon-cpp