Is it possible to emulate border-collapse (ala CSS) in a WPF ItemsControl?

Question

I\'m styling the items in a WPF ListBox, and want to put a border around each item. With BorderThickness set to 1, for example, the top-bottom borders

Answer 1

Use BorderThickness="1,0,1,1" and a DataTrigger which checks for RelativeSource={RelativeSource Mode=PreviousData} being null to set BorderThickness="1,1,1,1":

  
    
      Alice
      Bob
      Colleen