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ICredentials Interface

 

Provides the base authentication interface for retrieving credentials for Web client authentication.

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

Public Interface ICredentials

NameDescription
System_CAPS_pubmethodGetCredential(Uri, String)

Returns a NetworkCredential object that is associated with the specified URI, and authentication type.

The ICredentials interface provides the GetCredential method to objects that supply network credentials to applications.

The following example illustrates how to use the ICredentials interface.


Class CredentialInfo
    Public uriObj As Uri
    Public authenticationType As [String]
    Public networkCredentialObj As NetworkCredential


    Public Sub New(uriObj As Uri, authenticationType As [String], networkCredentialObj As NetworkCredential)
        Me.uriObj = uriObj
        Me.authenticationType = authenticationType
        Me.networkCredentialObj = networkCredentialObj
    End Sub 'NewNew
End Class 'CredentialInfo

Private arrayListObj As ArrayList


Public Sub New()
    arrayListObj = New ArrayList()
End Sub 'NewNew


Public Sub Add(uriObj As Uri, authenticationType As [String], credential As NetworkCredential)
    ' adds a 'CredentialInfo' object into a list
    arrayListObj.Add(New CredentialInfo(uriObj, authenticationType, credential))
End Sub 'Add

' Remove the 'CredentialInfo' object from the list which matches to the given 'Uri' and 'AuthenticationType'
Public Sub Remove(uriObj As Uri, authenticationType As [String])
    Dim index As Integer
    For index = 0 To arrayListObj.Count - 1
        Dim credentialInfo As CredentialInfo = CType(arrayListObj(index), CredentialInfo)
        If uriObj.Equals(credentialInfo.uriObj) And authenticationType.Equals(credentialInfo.authenticationType) Then
            arrayListObj.RemoveAt(index)
        End If
    Next index
End Sub 'Remove

Public Function GetCredential(uriObj As Uri, authenticationType As [String]) As NetworkCredential  Implements ICredentials.GetCredential
    Dim index As Integer
    For index = 0 To arrayListObj.Count - 1
        Dim credentialInfoObj As CredentialInfo = CType(arrayListObj(index), CredentialInfo)
        If uriObj.Equals(credentialInfoObj.uriObj) And authenticationType.Equals(credentialInfoObj.authenticationType) Then
            Return credentialInfoObj.networkCredentialObj
        End If
    Next index
    Return Nothing
End Function 'GetCredential

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 3.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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