Why "Cookies Disabled" occurs when the same Httprequest function is called again?

Question

To workaround the "Cookies Disabled" issue, I use CookieContainer myContainer = new CookieContainer(); request.CookieContainer = myContainer; This works when the getIDfromWeb function is first called. However, when the getIDfromWeb function is called again, "Cookies disabled" occurs. How should I workaround this issue? To reproduce the same issue, you need to meet the "Cookies Disabled" issue when you do not include "request.CookieContainer = myContainer;" otherwise your url may not need authentication. Although I can get the information by placing my URL on the IE address bar and hitting enter, I met authorization error when implementing this from C#. I use httpwebrequest and cookies to workaround issue but found I met "Cookies disabled" issue when I called the function the second time.

       using System;
        using System.Collections.Generic;
        using System.IO;
        using System.Linq;
        using System.Net;
        using System.Text;
        using System.Threading.Tasks;

        namespace ConsoleApplication3
        {
            class Program
            {
                const string baseURL = "http://intranet/rest/reserveid.php";
                 static void Main(string[] args)
                {

                    Console.WriteLine("Key1 sample:");
                    Console.WriteLine(getIDfromWeb("key1"));
                    Console.WriteLine("key1. sample2:");
                    Console.WriteLine(getIDfromWeb("key1"));
                    Console.ReadKey();
                }
                static string getIDfromWeb(string idType)
                {
                    int startPos = 0;
                    string url = "";
                    switch (idType)
                    {
                        case "key1":
                            startPos = 19;
                            url = baseURL + "?querystringforkey1";
                            break;
                        case "key2":
                            startPos = 15;
                            url = baseURL + "?querystringforkey2";
                            break;
                    }

                    CookieContainer myContainer = new CookieContainer();
                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                    request.Credentials = CredentialCache.DefaultNetworkCredentials;
                    request.CookieContainer = myContainer;
                    request.PreAuthenticate = true;
                    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                    var dataStream = response.GetResponseStream();
                    // Open the stream using a StreamReader for easy access.
                    StreamReader reader = new StreamReader(dataStream);
                    // Read the content.
                    string responseFromServer = reader.ReadToEnd();
                    // Display the content.
                    reader.Close();
                    response.Close();
                    return responseFromServer.Substring(startPos, (responseFromServer.IndexOf("}]") - startPos - 1));

                }
            }
        }

Answer 1

Its work for me.

Here is Updated your code, Please check.

static void Main(string[] args)
    {
        Console.WriteLine("Key1 sample:");
        Console.WriteLine(getIDfromWeb("key1"));
        Console.WriteLine("key1. sample2:");
        Console.WriteLine(getIDfromWeb("key2"));
        Console.ReadKey();
    }

Replace below line

Console.WriteLine(getIDfromWeb("key2"));