WebClient的登錄名和密碼的網站

Question

我試圖登錄到https://secure.domaintools.com/log-in/?logout（http://whois.domaintools.com）

using (var myWebClient = new WebClient()) 
{ 
    string loginData = "username=test@test.com&passowrd=pwd"; 

    string response = myWebClient.UploadString("https://secure.domaintools.com/log-in/?logout", "POST", loginData); 

    myWebClient.Headers["User-Agent"] = "MOZILLA/5.0 (WINDOWS NT 6.1; WOW64) APPLEWEBKIT/537.1 (KHTML, LIKE GECKO) CHROME/21.0.1180.75 SAFARI/537.1"; 
    myWebClient.DownloadString("http://whois.domaintools.com"); 
    doc.LoadHtml(page); 
} 

但是有這樣的錯誤

錯誤417展望失敗

我該如何解決這個問題？

Answer 1

這個屬性添加到您的代碼

ServicePointManager.Expect100Continue = false;