how can i learn my client ip with .NET?

Question

i need my client ip from whatismyip.com. But Regex pattern is not correct i think? Can you help me this patttern?

Answer 1

Have you read the comment in the obtained HTML:

Please set your code to scrape your IP from www.whatismyip.com/automation/n09230945.asp For more info, please see our "Recommended Automation Practices" thread in the Forum.

So this should get you going:

using (var client = new WebClient())
{
    Console.WriteLine(client.DownloadString(
        "http://www.whatismyip.com/automation/n09230945.asp"));
}

Answer 2

This can be achieved way easier using the automation interface from www.whatismyip.com, so there's no need for any regex:

static void Main(string[] args)
    {
        const string url = "http://www.whatismyip.com/automation/n09230945.asp";

        var client = new WebClient();
        try
        {
            var myIp = client.DownloadString(url);
            Console.WriteLine("Your IP: " + myIp);
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error contacting website: " + ex.Message);
        }
    }