---
source_files:
  - DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.TestModification/View/TestModificationView.xaml.cs
generated_at: "2026-04-16T11:09:12.708524+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "3165a969f0d942bf"
---

# Documentation: TestModificationView

## 1. Purpose

`TestModificationView` is a WPF user control that provides the interaction logic for a view related to test modification functionality. It implements the `ITestModificationView` interface and exposes available filter classes (CFC - Channel Filter Classes) for use in the UI, specifically retrieving filter options from `AnalogSettingDefaults`. The module appears to be part of a larger sensor data viewing and modification system within the DTS Viewer application.

## 2. Public Interface

### `TestModificationView()` (Constructor)
**Signature:** `public TestModificationView()`

Initializes a new instance of the view by calling `InitializeComponent()`, which loads the XAML-defined UI components.

---

### `AvailableCFC` (Property)
**Signature:** `public List<IFilterClass> AvailableCFC { get; }`

**Behavior:** Returns a list of available filter classes by instantiating a new `AnalogSettingDefaults` object and accessing its `FilterOptions` property. This property is read-only (getter only). The comment references "FB 13120" indicating this was implemented for a specific feature request or bug fix.

## 3. Invariants

- The `AvailableCFC` property will never return `null` (assuming `AnalogSettingDefaults.FilterOptions` never returns `null`).
- Each call to `AvailableCFC` creates a new `AnalogSettingDefaults` instance; the property does not cache or reuse a single instance.
- The view must be initialized via `InitializeComponent()` before any UI element access.

## 4. Dependencies

### This module depends on:
- `DTS.Common.Interface` - Provides `ITestModificationView` interface that this class implements
- `DTS.Common.Interface.Sensors.SoftwareFilters` - Provides `IFilterClass` interface used in the `AvailableCFC` property return type
- `DTS.SensorDB` - Provides `AnalogSettingDefaults` class used to retrieve filter options
- `System.Windows.Controls` - WPF base classes (UserControl, inferred from partial class pattern)
- `System.Collections.Generic` - Provides `List<T>` collection type

### What depends on this module:
- Cannot be determined from source alone. Consumers would be modules that reference `ITestModificationView` or directly instantiate `TestModificationView`.

## 5. Gotchas

1. **Unused import:** `System.Text.RegularExpressions` is imported but never used in this file. This may indicate leftover code from refactoring.

2. **Namespace suppression:** The file includes `// ReSharper disable CheckNamespace`, suggesting the namespace `DTS.Viewer.TestModification` may not match the project's folder structure conventions, or ReSharper is flagging a namespace mismatch.

3. **Property allocation pattern:** The `AvailableCFC` property instantiates a new `AnalogSettingDefaults` object on every access. If called frequently (e.g., in a binding or loop), this could create unnecessary object allocations. Consider whether caching would be appropriate.

4. **FB 13120 reference:** The comment references a tracking identifier (likely FogBugz or similar issue tracker). The context and resolution of this issue are not documented in code.