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IAuthenticationModule.CanPreAuthenticate Property

Gets a value indicating whether the authentication module supports preauthentication.

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

'Declaration
ReadOnly Property CanPreAuthenticate As Boolean

Property Value

Type: System.Boolean
true if the authorization module supports preauthentication; otherwise false.

The CanPreAuthenticate property is set to true to indicate that the authentication module can respond with a valid Authorization instance when the PreAuthenticate method is called.

Notes to Implementers

This is typically a fixed value; either the authentication module can preauthenticate, or it cannot.

The following example shows how to use the CanPreAuthenticate property. For a complete example refer to the AuthenticationManager class.

Private m_authenticationType As String 
      Private m_canPreAuthenticate As Boolean 


      ' The CustomBasic constructor initializes the properties of the customized  
      ' authentication. 
      Public Sub New()
        m_authenticationType = "Basic"
        m_canPreAuthenticate = False 
      End Sub 'New 

      ' Define the authentication type. This type is then used to identify this 
      ' custom authentication module. The default is set to Basic. 

      Public ReadOnly Property AuthenticationType() As String _
       Implements IAuthenticationModule.AuthenticationType

        Get 
          Return m_authenticationType
        End Get 
      End Property 

      ' Define the pre-authentication capabilities for the module. The default is set 
      ' to false. 

      Public ReadOnly Property CanPreAuthenticate() As Boolean _
       Implements IAuthenticationModule.CanPreAuthenticate


        Get 
          Return m_canPreAuthenticate
        End Get 
      End Property

.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

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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