<ExtensionAttribute()>
Public Shared Function LoginAsync( _
   ByVal source As IAuthenticationService, _
   ByVal credential As IdeaBlade.EntityModel.ILoginCredential, _
   ByVal onSuccess As Action, _
   ByVal onFail As Action(Of Exception) _
) As OperationResult

Dim source As IAuthenticationService
Dim credential As IdeaBlade.EntityModel.ILoginCredential
Dim onSuccess As Action
Dim onFail As Action(Of Exception)
Dim value As OperationResult
 
value = Compatibility.LoginAsync(source, credential, onSuccess, onFail)

[ExtensionAttribute()]
public static OperationResult LoginAsync( 
   IAuthenticationService source,
   IdeaBlade.EntityModel.ILoginCredential credential,
   Action onSuccess,
   Action<Exception> onFail
)

[ExtensionAttribute()]
public:
static OperationResult^ LoginAsync( 
   IAuthenticationService^ source,
   IdeaBlade.EntityModel.ILoginCredential^ credential,
   Action^ onSuccess,
   Action<Exception^>^ onFail
)