Binaryworld - DelComPlusAppRoleMember - Removing a member from a COM+ application's ... [ VB.net -> COM+ ]

' Remove a member from a COM+ application's role,
' and return True if the operation is successfull
' Note: requires a reference to the COM+ Admin Type Library
'
' Example: DelComPlusAppRoleMember("MyComPlusApp", "MyTestRole", "MYPC\Owner",
' "")

Function DelComPlusAppRoleMember(ByVal applicationName As String, _
  ByVal roleName As String, ByVal memberName As String, _
  ByVal serverName As String) As Boolean
  Dim catalog As New COMAdmin.COMAdminCatalog
  catalog.Connect(serverName)
  ' get the Applications collection
  Dim apps As COMAdmin.COMAdminCatalogCollection = CType _
    (catalog.GetCollection("Applications"), _
    COMAdmin.COMAdminCatalogCollection)
  apps.Populate()
  Dim AppObj As COMAdmin.COMAdminCatalogObject
  For Each AppObj In apps
    If applicationName = AppObj.Name.ToString() Then
      Dim roles As COMAdmin.COMAdminCatalogCollection = CType _
        (apps.GetCollection("Roles", AppObj.Key), _
        COMAdmin.COMAdminCatalogCollection)
      roles.Populate()
      Dim RoleObj As COMAdmin.COMAdminCatalogObject
      For Each RoleObj In roles
        If roleName = RoleObj.Name.ToString() Then
          Dim members As COMAdmin.COMAdminCatalogCollection = CType _
            (roles.GetCollection("UsersInRole", RoleObj.Key), _
            COMAdmin.COMAdminCatalogCollection)
          members.Populate()
          ' add each member name to an ArrayList
          Dim i As Integer
          For i = 0 To members.Count - 1
            If memberName = CType(members.Item(i), _
              COMAdmin.COMAdminCatalogObject).Name.ToString() Then
              If members.RemoveEnabled Then
                members.Remove(i)
                members.SaveChanges()
                Return True
              End If
            End If
          Next i
        End If
      Next RoleObj
    End If
  Next AppObj
  Return False
End Function