What problem does it solve? Adding a hierarchical navigation sidebar to a WPF application requires choosing the right control, wiring data binding correctly, and configuring view modes, search, and collapse behavior — this Skill provides the exact XAML, C#, and API guidance for the DevExpress AccordionControl so you avoid common pitfalls like broken bindings and wrong namespaces. ## Core Features & Use Cases - Static and Data-Bound Menus: Define AccordionItem elements directly in XAML or bind to ViewModel collections using ChildrenPath, ChildrenSelector, or HierarchicalDataTemplate. - View Modes and Collapse: Switch between Default accordion and Outlook-style NavigationPane mode, integrate with OfficeNavigationBar, and collapse the panel into a glyph-only strip. - Built-in Search and Customization: Enable the search box with ShowSearchControl, customize item headers, glyphs, and embedded editors, and implement custom filter logic via CustomItemFilter. - Use Case: You are building a line-of-business WPF app on .NET 8 and need an Outlook-style sidebar with Mail, Calendar, and People sections bound to a ViewModel, with a search field and collapsible compact mode. ## Quick Start Ask the AI to add a DevExpress AccordionControl sidebar to your WPF window bound to a hierarchical ViewModel collection with search enabled.
