Binding visibility of a control to 'Count' of an IEnumerable

Question

I have a list of objects contained in an IEnumerable<>. I would like to set the visibility of a control based on the count of this list. I have tried:

 Visibi         


        

Answer 1

There is three ways:

1. to use Triggers mentioned by H.B.
2. to use convertors by implementing IValueConverter in a class and setting the Converter property of Binding to an instance of IValueConverter in that class
3. to define a property in your ViewModel to directly return the Visibility state.

You could always use Triggers method and it always is a good approach. The third method is useful(and is best) when you are using MVVM pattern (and you are not restricting yourself from referencing UI related assemblies in your ViewModel) I suggest using Triggers, but if you dont want to make your xaml dirty by that much markup codes use converters.