Get Folder Attribute "hidden"?

i wrote this code to verify if the folder attribute hidden ist true:

If oDir.Attributes And FileAttributes.Hidden = FileAttributes.Hidden Then
return true
End If

It returns always true! The code below works correct:

dim oDir As New DirectoryInfo("OrdnerPfad")
Dim attrib As System.IO.FileAttributes = System.IO.File.GetAttributes(oDir.FullName)
If (attrib And System.IO.FileAttributes.Hidden) = System.IO.FileAttributes.Hidden Then
return true
Else

Why does the first code do not work correctly.