I can't find any documentation related to validating "forms" created using UI for Xamarin controls, I understand that could be something related to xamarin.forms itself but before trying any other options I would like to hear directly from Telerik staff what's is the best suited approach to validate your controls.
For instance, I'm implementing a login screen using two RadEntry (user and password) and one RadButton, I would like to apply some basic rules to the RadEntries, like they can't be empty then once pressed the button it should trigger those rules and invalidate the form so the user can't submit it until the RadEntries have valid data.
What is your recommendation of handling this scenario? a behavior? a third party library? attaching by hand the required event for each control?
P.D.: Are you planning to implement some kind of Form container control where you can trigger a validation event to all controls inside it just like the DataForm control works?