---
source_files:
  - Common/DTS.CommonCore/Base/View/BaseWindow.cs
  - Common/DTS.CommonCore/Base/View/BaseView.cs
generated_at: "2026-04-17T16:07:35.691560+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "552d84b401685097"
---

# View

### Purpose
This module provides base classes for WPF view components within the DTS framework. It establishes a consistent pattern for views to expose dirty-state tracking and header information by delegating to their DataContext ViewModels. Both `BaseWindow` and `BaseView` serve as abstracted base types that bridge the gap between standard WPF controls (`Window`, `UserControl`) and the application's ViewModel contracts (`IBaseWindowModel`, `IBaseViewModel`, `IHeaderInfoProvider<string>`).

### Public Interface

**BaseWindow : Window, IBaseWindow**
- `bool IsDirty { get; }` — Returns `true` if the `DataContext` implements `IBaseWindowModel` and its `IsDirty` property is `true`. Returns `false` if `DataContext` is null or does not implement the interface.
- `string HeaderInfo { get; }` — Returns the `HeaderInfo` from `DataContext` if it implements `IHeaderInfoProvider<string>`. Returns `string.Empty` if `DataContext` is null or does not implement the interface.

**BaseView : UserControl, IBaseView**
- `bool IsDirty { get; }` — Returns `true` if the `DataContext` implements `IBaseViewModel` and its `IsDirty` property is `true`. Returns `false` if `DataContext` is null or does not implement the interface.
- `string HeaderInfo { get; }` — Returns the `HeaderInfo` from `DataContext` if it implements `IHeaderInfoProvider<string>`. Returns `string.Empty` if `DataContext` is null or does not implement the interface.

### Invariants
- `IsDirty` will never throw; it safely returns `false` when `DataContext` is null or incompatible.
- `HeaderInfo` will never throw; it safely returns `string.Empty` when `DataContext` is null or incompatible.
- Both properties are read-only getters with no setters.

### Dependencies
**Depends on:**
- `System.Windows` (Window class)
- `System.Windows.Controls` (UserControl class)
- `IBaseWindow`, `IBaseWindowModel`, `IBaseViewModel`, `IHeaderInfoProvider<string>` (interfaces not shown in source; assumed defined elsewhere in DTS.CommonCore or related assemblies)

**Depended on by:**
- Unclear from source alone; likely all Window and UserControl derivatives in the DTS application.

### Gotchas
- **Interface mismatch between BaseWindow and BaseView:** `BaseWindow.IsDirty` checks for `IBaseWindowModel`, while `BaseView.IsDirty` checks for `IBaseViewModel`. These are different interfaces. A ViewModel intended for use with both must implement both interfaces, or dirty state will report incorrectly in one context.
- The namespace is declared as `DTS.Common.Base` but the file path suggests `DTS.CommonCore`. This may indicate a historical namespace rename or intentional divergence.

---