private SpecializedObservableCollection <ExtensionProperty> CreateStopExtensions(RTTTripDetails trip, Consignment consignment) { if (trip.PlannedRoute == true) { return(new SpecializedObservableCollection <ExtensionProperty>() { new ExtensionProperty() { Key = "SizweOffloadStart", Value = consignment.GetSizwePlannedOffloadStart() }, new ExtensionProperty() { Key = "SizweOffloadEnd", Value = consignment.GetSizwePlannedOffloadEnd() }, new ExtensionProperty() { Key = "SizweOffloadDuration", Value = consignment.GetSizwePlannedOffloadDuration() }, new ExtensionProperty() { Key = "SizweDistance", Value = consignment.GetSizwePlannedDistance() }, new ExtensionProperty() { Key = "SizweAddressId", Value = consignment.GetSizweAddressId() }, }); } return(null); }