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:

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Answer 1

You cannot use logical or code-expressions in bindings (it expects a PropertyPath). Either use a converter or triggers, which is what i would do:

(You can of course refactor the style into a resource if you wish.)