CredentialCache.GetCredential Method (Uri, String)


Returns the NetworkCredential instance associated with the specified Uniform Resource Identifier (URI) and authentication type.

Namespace:   System.Net
Assembly:  System (in System.dll)

public NetworkCredential GetCredential(
	Uri uriPrefix,
	string authType


Type: System.Uri

A Uri that specifies the URI prefix of the resources that the credential grants access to.

Type: System.String

The authentication scheme used by the resource named in uriPrefix.

Return Value

Type: System.Net.NetworkCredential

A NetworkCredential or, if there is no matching credential in the cache, null.

Exception Condition

uriPrefix or authType is null.

The GetCredential(Uri, String) method searches the CredentialCache and returns the NetworkCredential instance for the specified URI and authorization type. If the CredentialCache contains no matching NetworkCredential instance, null is returned.

GetCredential uses the longest matching URI prefix in the cache to determine which set of credentials to return for an authorization type. The following table shows examples.

URI Prefix


Requests for the specific Web page news.htm.

Requests for all content in the portal path, except the page news.htm.

Requests for all resources at, except those in the portal path.

The following code example uses the GetCredential(Uri, String) method to return the NetworkCredential instance associated with the specified URI and authentication type.

  public static void GetPage(string url,string userName,string password,string domainName)
          CredentialCache myCredentialCache = new CredentialCache();
          // Dummy names used as credentials.    
          myCredentialCache.Add(new Uri(""),"Basic", new NetworkCredential("user1","passwd1","domain1"));
          myCredentialCache.Add(new Uri(""),"Basic", new NetworkCredential("user2","passwd2","domain2"));
          myCredentialCache.Add(new Uri(url),"Basic", new NetworkCredential(userName,password,domainName));
          // Create a webrequest with the specified url.
       WebRequest myWebRequest = WebRequest.Create(url);  
          // Call 'GetCredential' to obtain the credentials specific to our Uri.
          NetworkCredential myCredential = myCredentialCache.GetCredential(new Uri(url),"Basic");
       // Associating only our credentials.        
          myWebRequest.Credentials = myCredential;    
          // Sends the request and waits for response.
       WebResponse myWebResponse = myWebRequest.GetResponse(); 

          // Process response here.

       Console.WriteLine("\nResponse Received.");

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

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.1
Windows Phone
Available since 8.1
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