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CredentialCache.Add Method (Uri, String, NetworkCredential)

Adds a NetworkCredential instance to the credential cache for use with protocols other than SMTP and associates it with a Uniform Resource Identifier (URI) prefix and authentication protocol.

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

'Declaration
Public Sub Add ( _
	uriPrefix As Uri, _
	authType As String, _
	cred As NetworkCredential _
)

Parameters

uriPrefix
Type: System.Uri

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

authType
Type: System.String

The authentication scheme used by the resource named in uriPrefix.

cred
Type: System.Net.NetworkCredential

The NetworkCredential to add to the credential cache.

ExceptionCondition
ArgumentNullException

uriPrefix is Nothing.

-or-

authType is Nothing.

ArgumentException

The same credentials are added more than once.

The Add method places a NetworkCredential instance for use with protocols other than SMTP into the CredentialCache. The cache stores credentials in the order in which they are added to it. When the GetCredential(Uri, String) method is called, it returns the proper matching NetworkCredential instance.

The following code example initializes a CredentialCache with multiple security credentials and uses those credentials with a WebRequest.

Dim myCache As New CredentialCache()

myCache.Add(New Uri("http://www.contoso.com/"), "Basic", New NetworkCredential(UserName, SecurelyStoredPassword))
myCache.Add(New Uri("http://www.contoso.com/"), "Digest", New NetworkCredential(UserName, SecurelyStoredPassword, Domain))

wReq.Credentials = myCache

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Silverlight 8.1

Windows Phone 8.1, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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