Once you correct the ItemsSource with the right value XAML would not routinely reilitialize the collection of things. MaartenMaarten 23k33 gold badges5151 silver badges6969 bronze badges Increase a remark And the challenge the binding is having is that the ConfigurationModel property will not be observed on the data context object https://godrejconnaughtoneingurgaon.blogspot.com/2025/07/jms-low-rise-floors-manesar-green.html