CredentialCache.GetEnumerator Method

Definition

Namespace:

System.Net

Assemblies:

netstandard.dll, System.Net.Primitives.dll

Source:

CredentialCache.cs

Returns an enumerator that can iterate through the CredentialCache instance.

C#

public System.Collections.IEnumerator GetEnumerator();

Returns

IEnumerator

An IEnumerator for the CredentialCache.

Implements

GetEnumerator()

Examples

The following code example uses the GetEnumerator method to return an enumerator that can iterate through the CredentialCache instance.

C#

 public static void GetPage(string url,string userName,string password,string domainName)
   {
      try
      {
          CredentialCache myCredentialCache = new CredentialCache();
          // Dummy Credentials used here.
          myCredentialCache.Add(new Uri("http://microsoft.com/"),"Basic", new NetworkCredential("user1","passwd1","domain1"));
          myCredentialCache.Add(new Uri("http://msdn.com/"),"Basic", new NetworkCredential("user2","passwd2","domain2"));

          myCredentialCache.Add(new Uri(url),"Basic", new NetworkCredential(userName,password,domainName));
          // Creates a webrequest with the specified url.
          WebRequest myWebRequest = WebRequest.Create(url);
          myWebRequest.Credentials = myCredentialCache;
          IEnumerator listCredentials = myCredentialCache.GetEnumerator();

          Console.WriteLine("\nDisplaying credentials stored in CredentialCache: ");
          while(listCredentials.MoveNext())
          {
              Display((NetworkCredential)listCredentials.Current);
          }
          Console.WriteLine("\nNow Displaying the same using 'foreach' : ");
          // Can use foreach with CredentialCache(Since GetEnumerator function of IEnumerable has been implemented by 'CredentialCache' class.
          foreach(NetworkCredential credential in myCredentialCache)
              Display(credential);
          // Send the request and waits for response.
       WebResponse myWebResponse = myWebRequest.GetResponse();

         // Process response here.

         Console.WriteLine("\nResponse Received.");
          myWebResponse.Close();
      }
      catch(WebException e)
      {
          if (e.Response != null)
              Console.WriteLine("\r\nFailed to obtain a response. The following error occurred : {0}",((HttpWebResponse)(e.Response)).StatusDescription);
          else
              Console.WriteLine("\r\nFailed to obtain a response. The following error occurred : {0}",e.Status);
      }
      catch(Exception e)
      {
          Console.WriteLine("\nThe following exception was raised : {0}",e.Message);
      }
}
public static void Display(NetworkCredential credential)
{
  Console.WriteLine("\n\tUsername : {0} ,Password : {1} ,Domain : {2}",credential.UserName,credential.Password,credential.Domain);
}

Applies to