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docs/ai/DataPRO/Modules/TestSetups/Diagnostics/ViewModel.md

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+---
+source_files:
+  - DataPRO/Modules/TestSetups/Diagnostics/ViewModel/DiagnosticsViewModel.cs
+generated_at: "2026-04-17T16:47:10.374442+00:00"
+model: "zai-org/GLM-5-FP8"
+schema_version: 1
+sha256: "e1ab887d53b828fa"
+---
+
+# DiagnosticsViewModel Documentation
+
+## 1. Purpose
+
+`DiagnosticsViewModel` is a Prism-based ViewModel for the Diagnostics module within the TestSetups subsystem. It serves as the presentation logic layer for diagnostic UI, managing view binding, user notifications, and event-driven communication with other application components. The class is designed as a shared singleton (MEF `CreationPolicy.Shared`) and acts as a bridge between the `IDiagnosticsTreeView` and the application's event infrastructure.
+
+---
+
+## 2. Public Interface
+
+### Constructor
+
+```csharp
+public DiagnosticsViewModel(
+    IDiagnosticsTreeView view,
+    IRegionManager regionManager,
+    IEventAggregator eventAggregator,
+    IUnityContainer unityContainer)
+```
+Initializes the ViewModel, sets the `TreeView`'s `DataContext` to itself, creates interaction requests, and subscribes to `RaiseNotification` and `BusyIndicatorChangeNotification` events.
+
+---
+
+### Properties
+
+| Property | Type | Access | Description |
+|----------|------|--------|-------------|
+| `View` | `IDiagnosticsTreeView` | get/set | DiagnosticsTreeView reference (appears separate from `TreeView`). |
+| `TreeView` | `IDiagnosticsTreeView` | get/set | The diagnostics tree view; `DataContext`