---
source_files:
  - DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.TestModification/View/TestModificationView.xaml.cs
generated_at: "2026-04-16T13:47:19.361025+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "3165a969f0d942bf"
---

# Documentation: TestModificationView.xaml.cs

## 1. Purpose

This module provides the code-behind for a WPF view component (`TestModificationView`) within the DTS Viewer application's TestModification module. It implements the `ITestModificationView` interface and exposes available filter class options to the view layer, serving as a bridge between the sensor database configuration and the UI for test modification functionality.

---

## 2. Public Interface

### `TestModificationView` (Class)

**Implements:** `ITestModificationView`

#### Constructor

```csharp
public TestModificationView()
```
Initializes the view component by calling `InitializeComponent()`, which loads the associated XAML.

#### Property: `AvailableCFC`

```csharp
public List<IFilterClass> AvailableCFC { get; }
```
Returns a list of available filter classes (CFC = Channel Filter Classes, per comment "FB 13120"). Each access instantiates a new `AnalogSettingDefaults` object and returns its `FilterOptions` property.

---

## 3. Invariants

- The `AvailableCFC` property always returns a non-null `List<IFilterClass>` (the actual nullability depends on `AnalogSettingDefaults.FilterOptions` implementation, which is external to this file).
- The view is a partial class; the XAML counterpart (`TestModificationView.xaml`) must exist for `InitializeComponent()` to succeed.
- The class implements `ITestModificationView`, implying contractual obligations defined in that interface (not visible in this source).

---

## 4. Dependencies

### This module depends on:
- `DTS.Common.Interface` — provides `ITestModificationView` interface
- `DTS.Common.Interface.Sensors.SoftwareFilters` — provides `IFilterClass` interface
- `DTS.SensorDB` — provides `AnalogSettingDefaults` class
- `System.Windows.Controls` — WPF infrastructure (UserControl base, implied by `InitializeComponent()` pattern)

### Unused import:
- `System.Text.RegularExpressions` — imported but not referenced in this file

### What depends on this module:
- Cannot be determined from this source file alone (likely referenced by a module registration/bootstrapper or a parent view).

---

## 5. Gotchas

1. **Object allocation on every property access**: The `AvailableCFC` getter creates a new `AnalogSettingDefaults` instance on every call. If this property is data-bound and accessed frequently by WPF, it could cause unnecessary allocations. Consider whether caching is appropriate.

2. **Unused import**: `System.Text.RegularExpressions` is imported but not used in this file. This may indicate dead code, a missing implementation, or usage in the XAML portion.

3. **Namespace suppression**: The file includes `// ReSharper disable CheckNamespace`, suggesting the namespace may not match the folder structure. This could cause confusion when navigating the codebase.

4. **FB 13120 reference**: The comment references a tracking item (likely a bug or feature request). The context and resolution status of this item are unknown from the source alone.