How to ignore a certificate error with c# 2.0 WebClient - without the certificate

Question

Using Visual Studio 2005 - C# 2.0, System.Net.WebClient.UploadData(Uri address, byte[] data) Windows Server 2003

So here\'s a stripped down version of

Answer 1

I realize this is an old post, but I just wanted to show that there is a more short-hand way of doing this (with .NET 3.5+ and later).

Maybe it's just my OCD, but I wanted to minimize this code as much as possible. This seems to be the shortest way to do it, but I've also listed some longer equivalents below:

// 79 Characters (72 without spaces)
ServicePointManager.ServerCertificateValidationCallback = (a, b, c, d) => true;

Shortest way in .NET 2.0 (which is what the question was specifically asking about)

// 84 Characters
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

It's unfortunate that the lambda way requires you to define the parameters, otherwise it could be even shorter.

And in case you need a much longer way, here are some additional alternatives:

ServicePointManager.ServerCertificateValidationCallback = (sender, cert, chain, errors) => true;

ServicePointManager.ServerCertificateValidationCallback = delegate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; };

// 255 characters - lots of code!
ServicePointManager.ServerCertificateValidationCallback =
    new RemoteCertificateValidationCallback(
        delegate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
        {
            return true;
        });