LDAP - Liefert eine Liste mit allen Gruppen zu einem User

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Imports System.DirectoryServices
Imports System.DirectoryServices.ActiveDirectory


    Public Function GetUserMemberOf(ByVal domain As String, ByVal username As String, ByVal password As String, Optional ByRef exeption As Exception = Nothing) As Collections.Generic.List(Of String)
        Dim searcher As DirectorySearcher = Nothing
        Dim colEntry As New Collections.Generic.List(Of String)

        Try
            searcher = New DirectorySearcher(New DirectoryEntry("LDAP://" & domain, username, password))
            searcher.Filter = String.Concat("(&(objectClass=User) (sAMAccountName=", username, "))")
            searcher.PropertiesToLoad.Add("MemberOf")

            Dim result As SearchResult = searcher.FindOne
            For i As Integer = 0 To result.Properties("MemberOf").Count - 1
                Dim sProp As String = result.Properties("MemberOf")(i)
                colEntry.Add(sProp.Substring(3, sProp.IndexOf(",") - 3))
            Next

        Catch ex As Exception
            exeption = ex

        Finally
            searcher.Dispose()
        End Try

        Return colEntry

    End Function