WPF Adorner Patterns

Adorner is a mechanism for overlaying decorative visual elements on top of UIElements.

1. Adorner Concept

1.1 Characteristics

• AdornerLayer: Separate rendering layer that holds Adorners
• Z-Order: Always renders above the adorned element
• Layout Independent: No effect on target element's layout
• Event Support: Can receive mouse/keyboard events

1.2 Usage Scenarios