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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 final function GetCredential(
	uriPrefix : Uri, 
	authType : String
) : NetworkCredential


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, a null reference (Nothing in Visual Basic).


ICredentials.GetCredential(Uri, String)


uriPrefix or authType is a null reference (Nothing in Visual Basic).

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, a null reference (Nothing in Visual Basic) 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.

No code example is currently available or this language may not be supported.
void Display(NetworkCredential* credential)
   Console::WriteLine(S"\nThe credentials are:");
   Console::WriteLine(S"\nUsername : {0} , Password : {1} , Domain : {2}", 
      credential->UserName, credential->Password, credential->Domain);

void GetPage(String* url, String* userName, String* password, String* domainName)
      CredentialCache* myCredentialCache = new CredentialCache();
      // Dummy names used as credentials.
      myCredentialCache->Add(new Uri(S""),
         S"Basic", new NetworkCredential(S"user1", S"passwd1", S"domain1"));
      myCredentialCache->Add(new Uri(S""), S"Basic",
         new NetworkCredential(S"user2", S"passwd2", S"domain2"));
      myCredentialCache->Add(new Uri(url), S"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), S"Basic");
      // Associating only our credentials.
      myWebRequest->Credentials = myCredential;
      // Sends the request and waits for response.
      WebResponse* myWebResponse = myWebRequest->GetResponse();

      // Process response here.

      Console::WriteLine(S"\nResponse Received.");
   catch (WebException* e)
      if (e->Response != 0)
         Console::WriteLine(S"\r\nFailed to obtain a response. The following error occured : {0}",
         Console::WriteLine(S"\r\nFailed to obtain a response. The following error occured : {0}",
         __box( e->Status));
   catch (Exception* e)
      Console::WriteLine(S"\nThe following exception was raised : {0}", e->Message);

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0