Simply looking to have a masked input textbox similar to that of the other frameworks that you already support, but for Blazor. Didn't see a request for this nor a mention on the roadmap for Blazor.

WPF and Xamarin supports data binding to INotifyCollectionChanged (ObservableCollection) and INotifyPropertyChanged.

This binding scenario is widely used.

So implementation of this feature allows WPF and Xamarin developers use their experience and code base in Blazor.