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wpfitemscontrolchildrengroupbox

How can I set a style trigger on the GroupBoxes of my ItemsControl without losing their current style?

When I set a style trigger on the children (GroupBoxes) of an ItemsControl the style I've previously applied to GroupBoxes is lost and it renders with default style.

Solution

  • Use the BasedOn property in the new style

    This is for using the default style

    <Style x:Key="newGroupBoxStyle" TargetType="{x:Type GroupBox}" BasedOn="{StaticResource {x:Type GroupBox}}">
  //...put triggers or whatever you want here         
 </Style>

    If you want to use a style based on your own style use

    ... BasedOn="{StaticResource MyGroupBoxStyleKey} ...