How can i update the visibility based on the collection count in xaml?

Question

Basically i have two ListPicker controls in my Windows phone application. I bind the ListPicker1 using the collection List<A> ACollection.

"A" class will be having the another one collection List<B> BCollection.

I need the requirement is if BCollection.Count > 0 then i should enable the Visibility of ListPicker2 and should bind that BCollection[ Its from A class ] to the ListPicker2.

What i expect is , i need to achieve this everything in xaml with 0% c# code in Windows phone.. Is it possible in WP7?

How are your existing collections bound to the UI? are you using a view-model? — Rowland Shaw, Jun 14 '12 at 19:14
I am not using ViewModel...But i want to know whether this can be done entirely through XAML — David Bekham, Jun 15 '12 at 05:37

score 0 · Answer 1 · edited May 23 '17 at 11:55

0

You need to expose BCollection.Count > 0 condition from your C# model as bool or Visiblity property. So no, it is not possible entirely in XAML w/o C#.

You can write dedicated converter in C# but it would be, well, C# code. See answer by AnthonyWJones for this question Is it possible to bind to a lambda expression in Silverlight?.

edited May 23 '17 at 11:55

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answered Jun 14 '12 at 23:28

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How can i update the visibility based on the collection count in xaml?

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