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CredentialCache.Remove Method (Uri, String)

Deletes a NetworkCredential instance from the cache if it is associated with the specified Uniform Resource Identifier (URI) prefix and authentication protocol.

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

Public Sub Remove ( _
	uriPrefix As Uri, _
	authType As String _
Dim instance As CredentialCache 
Dim uriPrefix As Uri 
Dim authType As String

instance.Remove(uriPrefix, authType)


Type: System.Uri

A Uri that specifies the URI prefix of the resources that the credential is used for.

Type: System.String

The authentication scheme used by the host named in uriPrefix.

This method removes a NetworkCredential instance from the CredentialCache if the specified URI prefix and authentication protocol match those associated with the credential. Multiple calls to the Remove method for the same NetworkCredential have no effect.

If authType is Nothing or uriPrefix is Nothing, or no matching credential is found in the cache, this method does nothing.

The following code example uses this method to delete a NetworkCredential instance from the cache.

' Create a webrequest with the specified url . 
Dim myWebRequest As WebRequest = WebRequest.Create(url)
myWebRequest.Credentials = myCredentialCache
Console.WriteLine(ControlChars.Cr + "Linked CredentialCache to your request.")
' Send the request and wait for response. 
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()

'Process the response here

Console.Write("Response received successfully.")
'Call 'Remove' method to dispose credentials for current Uri as they would not be;  
'required in any of the future requests.
myCredentialCache.Remove(myWebRequest.RequestUri, "Basic")
Console.WriteLine(ControlChars.Cr + "Your credentials have now been removed from the program's CredentialCache")
// Create a webrequest with the specified url.
WebRequest* myWebRequest = WebRequest::Create(url);
myWebRequest->Credentials = myCredentialCache;
Console::WriteLine(S"\nLinked CredentialCache to your request.");
// Send the request and wait for response.
WebResponse* myWebResponse = myWebRequest->GetResponse();

// Process response here.

Console::Write(S"Response received successfully.");
// Call 'Remove' method to dispose credentials for current Uri as not required further.
myCredentialCache->Remove(myWebRequest->RequestUri, S"Basic");
Console::WriteLine(S"\nYour credentials have now been removed from the program's CredentialCache");

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

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