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Tip of the Day
Language: VB7
Expertise: Advanced
Aug 25, 2003

DelComPlusAppRoleMember - Removing a member from a COM+ application's role

' 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
Robert N Neuman
 
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