cs

var devices = this.ToXTypedElementBooking();

                var devicePairs = this.EnumerateAllDevicePairs().ToArray();

                var xmlData = new IGEXAO_PIN_BOOKING()
                {

                    Device = this.ConnectorPairsByTag
                    .SelectMany(connectorPair =>
                    {
                        return connectorPair.Value.DevicePairs
                        .SelectMany(dp =>
                        {
                            var pair = (dp.Value as DevicePair);

                            var pairRecord = new[] { pair.Side1, pair.Side2 };
                            return pairRecord.Select(device =>
                            {
                                return new ctDevice()
                                {
                                    FullTag = device.Tag,
                                    Pin = device.PinsByName.Select(pin =>
                                    {
                                        var deviceSide = pairRecord[0] == device ? DeviceSide.Left : DeviceSide.Right;
                                        var pinID = FullDeviceIdManipulations.GetConnectorPairId(this.Tag, connectorPair.Value.Tag)
                                            .Concat(new[] { FullDeviceIdManipulations.ToPartIdFragment(device, deviceSide) })
                                            .Concat(new[] { FullDeviceIdManipulations.ToPartIdFragment(pin.Value, deviceSide) });
                                        var assignNets = GetAssignedNetsToPin(pinID);

                                        return new ctPin()
                                        {
                                            Name = pin.Value.Name,
                                            Rule = new List<ctRule>()
                                            {
                                                new ctRule()
                                                {
                                                    Status = RuleStatus,
                                                    Validity = validity,
                                                    Criteria = new ctCriteria()
                                                    {
                                                        FunctionalGroup = assignNets.Select(assNet =>
                                                            new tCriteriaType()
                                                            {
                                                                Value = string.Format("{0};{1}",
                                                                        assNet.Key.FunctionGroupLevel1, assNet.Key.FunctionGroupLevel2)
                                                            }).ToList()
                                                    }
                                                },
                                            }
                                        };
                                    }).ToList(),
                                };
                            }).ToList();
                        });
                    }).ToList(),
                };


                return xmlData.Untyped;