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docs/ai/DataPRO/Modules/Menu/HamburgerMenu/ViewModel.md

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+---
+source_files:
+  - DataPRO/Modules/Menu/HamburgerMenu/ViewModel/HamburgerMenuViewModel.cs
+generated_at: "2026-04-17T16:00:35.473048+00:00"
+model: "zai-org/GLM-5-FP8"
+schema_version: 1
+sha256: "5984a297f98a5ac4"
+---
+
+# HamburgerMenuViewModel Documentation
+
+## 1. Purpose
+
+`HamburgerMenuViewModel` is a Prism/Unity-based ViewModel that manages a hamburger menu's context menu construction, UI state (enabled/busy states), and event-driven communication within the application. It serves as the presentation logic layer for `IHamburgerMenuView`, handling menu item configuration, notification popups, and test lifecycle state changes via event aggregation. The class is designed as a shared singleton via MEF's `[PartCreationPolicy(CreationPolicy.Shared)]`.
+
+---
+
+## 2. Public Interface
+
+### Constructor
+```csharp
+public HamburgerMenuViewModel(
+    IHamburgerMenuView view, 
+    IRegionManager regionManager,
+    IEventAggregator eventAggregator, 
+    IUnityContainer unityContainer)
+```
+Initializes the ViewModel, sets the View's DataContext, creates interaction requests, and subscribes to three events: `RaiseNotification`, `BusyIndicatorChangeNotification`, and `TestEvent`.
+
+### Properties
+
+| Property | Type | Access |
+|----------|------|--------|
+| `View` | `IHamburgerMenuView` | get/set |
+| `NotificationRequest` | `InteractionRequest<Notification>` | get |
+| `ConfirmationRequest` | `InteractionRequest<Confirmation>` | get |
+| `IsEnabled` | `bool` | get; private set |
+| `IsBusy` | `bool` | get; set |
+| `IsDirty` | `bool` | get; private set |
+| `IsMenuIncluded` | `bool` | get; set |
+| `IsNavigationIncluded` | `bool` | get; set |
+| `MenuItemPressed` | `MenuItemPressedDelegate` | get; set |
+
+### Methods
+
+```csharp
+public ContextMenu GetContextMenu()
+```
+Returns the cached `ContextMenu`, building it lazily on first access. Thread-safe via lock on `MyLock`.
+
+```csharp
+public void SetMenuItems(string[] items)
+```
+Replaces the current menu items array and rebuilds the context menu. Empty or whitespace items