DP44/docs/ai/DTS Viewer/DTS.Viewer/View/DockPanelHorizontal/ViewModel.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
DTS Viewer/DTS.Viewer/View/DockPanelHorizontal/ViewModel/DockPanelHorizontalViewModel.cs	2026-04-17T16:29:26.445526+00:00	zai-org/GLM-5-FP8	1	ce03b3583ccf9c32

ViewModel

Purpose

This module provides the DockPanelHorizontalViewModel class, a Prism-based ViewModel for a horizontal dock panel UI component in the DTS Viewer application. It serves as a mediator between the view (IDockPanelHorizontalView) and the application infrastructure, handling notification requests via Prism's InteractionRequest pattern and subscribing to application-wide RaiseNotification events.

Public Interface

Class: DockPanelHorizontalViewModel (extends BaseViewModel<IDockPanelHorizontalViewModel>, implements IDockPanelHorizontalViewModel)

Constructor:

public DockPanelHorizontalViewModel(
    IDockPanelHorizontalView view,
    IRegionManager regionManager,
    IEventAggregator eventAggregator,
    IUnityContainer unityContainer)

Initializes the ViewModel, sets the View's DataContext to itself, creates NotificationRequest and ConfirmationRequest instances, and subscribes to the RaiseNotification event.

Properties:

• IDockPanelHorizontalView View { get; } — The associated view instance.
• InteractionRequest<Notification> NotificationRequest { get; } — Used to raise notification dialogs.
• InteractionRequest<Confirmation> ConfirmationRequest { get; } — Used to raise confirmation dialogs.
• bool IsMenuIncluded { get; set; } — UI state flag.
• bool IsNavigationIncluded { get; set; } — UI state flag.
• bool IsBusy { get; set; } — Indicates busy state.
• bool IsDirty { get; private set; } — Indicates unsaved changes.

Events:

• event PropertyChangedEventHandler PropertyChanged — Declared but not explicitly invoked in visible code.

Methods:

• void OnRaiseNotification(NotificationContentEventArgs eventArgsWithTitle) — Private handler that raises NotificationRequest with title, message, details, and image from the event args.
• override void Initialize() — Throws NotImplementedException.
• override void Initialize(object parameter) — Throws NotImplementedException.
• void Initialize(object parameter, object model) — Throws NotImplementedException (hides base with new).
• override void Activated() — Throws NotImplementedException.
• override void Cleanup() — Throws NotImplementedException.
• Task CleanupAsync() — Throws NotImplementedException (hides base with new).
• override Task InitializeAsync() — Throws NotImplementedException.
• override Task InitializeAsync(object parameter) — Throws NotImplementedException.

Invariants

• The View's DataContext is always set to the ViewModel instance upon construction.
• The ViewModel subscribes to RaiseNotification event via EventAggregator on construction.
• IsDirty is read-only externally (private setter).

Dependencies

Depends on:

• DTS.Common.Base (BaseViewModel<T>)
• DTS.Common.Events (RaiseNotification, NotificationContentEventArgs, NotificationContentEventArgsWithoutTitle — inferred from usage)
• DTS.Common.Interface (IViewModel, IDockPanelHorizontalViewModel, IDockPanelHorizontalView)
• Microsoft.Practices.Prism.Events (`IEventAggregator