如何从C＃中的代码动态创建ListBox项（Winrt）

Question

I'm hoping someone can point me in the right direction here,

I am faced with the task of creating a screen that I must construct using a message sent to me from over a socket. The screen can consist of your standard GUI items, and this includes a list/table. I can see plenty of code and tips on how to create a table using a DataTemplate in XAML, however I have 2 (related) things which I am struggling with.

1. What is the best way to create a list from code (WinRT/c#), that may contain a complicated component heirachy (buttons/images inside a panel laid out by me). I see that the ItemContainerGenerator is a sealed class so I can't roll my own... Do I create my own DataTemplate via code some how?

2. How do I implement row recycling? Will I need to add bindings for every little parameter like border colour and alignment, and if so would this have a significant impact on performance??

Any pointers will definitely be appreciated. (I'm more at home in Android/Java and c# is an exciting new world for me)

Cheers,

Peter.

Answer 1

WinRT does not really have support for representation of hierarchical data on a single screen. If you look at how file picker is implemented - you need to dig into subfolders one by one and then go back the same way.

If your hierarchy is complicated, but relatively flat - using DataTemplates might be enough, though for Metro apps - you do not really want your hierarchy to be complicated and you might want to try to think how to make it easier to be easily consumed in the touch centric UI.

What do you mean by row recycling? A ListView or ListBox uses a VirtualizingStackPanel as its ItemsPanel by default and virtualizes rows or columns automatically. If you want anything more custom - you might need to implement your own ItemsControl subclass instead.