I can't figure out any way enabled/disable toolbar items on windows phone. Xamarin.Forms.ToolbarItem extends Xamarin.Forms.MenuItem which has an IsEnabled bindable property. The only problem is that it's internal.
So my question is, wtf mate? What's the point of that? I want to use buttons in the toolbar that can be toggled on and off based on changes to data-bound model structures. Is there anyway we can get that made into a public property...preferably by this afternoon? :P
I'm kidding, but it seems like I'll have to write yet another custom renderer to get some trivial functionality, since Microsoft.Phone.Shell.ApplicationBarIconButton.IsEnabled is public.