---
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