---
source_files:
  - DTS Viewer/DTS.Viewer.Reports/DTS.Viewer.PSDReportSettings/View/PSDReportSettingsView.xaml.cs
generated_at: "2026-04-16T11:00:59.568454+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "5b2351e33ed49693"
---

# Documentation: PSDReportSettingsView

## 1. Purpose

`PSDReportSettingsView` is a WPF view component that provides the user interface for configuring Power Spectral Density (PSD) report settings within the DTS Viewer application. It implements `IPSDReportSettingsView` and serves as the presentation layer for report configuration, exposing selectable options for spectral analysis parameters such as FFT window widths.

## 2. Public Interface

| Member | Signature | Description |
|--------|-----------|-------------|
| Constructor | `public PSDReportSettingsView()` | Initializes the view by calling `InitializeComponent()`, which loads the associated XAML layout. |
| Property | `public List<int> AvailableWindowWidths` | Returns a new list containing valid FFT window size options: `{ 512, 1024, 2048, 4096, 8192 }`. Each access creates a new list instance. |

**Implemented Interface:**
- `IPSDReportSettingsView` (from `DTS.Common.Interface`)

## 3. Invariants

- **Window width values are fixed**: The `AvailableWindowWidths` property always returns the same five integer values (512, 1024, 2048, 4096, 8192), representing power-of-two FFT sizes.
- **New instance per access**: `AvailableWindowWidths` creates and returns a new `List<int>` on every property getter invocation; it does not cache the collection.
- **XAML initialization required**: The constructor must call `InitializeComponent()` before the view can be used, as this is a code-behind for a XAML file.

## 4. Dependencies

**This module depends on:**
- `DTS.Common.Interface` — Provides the `IPSDReportSettingsView` interface that this class implements.
- `System.Collections.Generic` — Provides `List<T>` for the window widths collection.
- `Xceed.Wpf.Toolkit.PropertyGrid.Attributes` — Imported but **not used** in the visible source code.
- The corresponding XAML file (`PSDReportSettingsView.xaml`) — Paired via WPF partial class mechanism.

**What depends on this module:**
- Unclear from source alone. Consumers would reference this view through the `IPSDReportSettingsView` interface, likely a presenter or view model following a MVP/MVVM pattern.

## 5. Gotchas

- **Unused import**: The `Xceed.Wpf.Toolkit.PropertyGrid.Attributes` namespace is imported but no attributes or types from it are used in the visible code. This may be dead code or intended for future use.

- **Commented-out members**: Three properties (`AvailablePassFilterTypes`, `AvailableWindowAveragingTypes`, `AvailableWindowTypes`) and their backing fields are fully commented out. These referenced `IItemsSource` and enum item source classes from `DTS.Common.Enums.Viewer.Reports`. This suggests either:
  - Incomplete refactoring
  - Features moved elsewhere
  - Work-in-progress that was disabled

- **Allocation on every access**: The `AvailableWindowWidths` property allocates a new `List<int>` on every call. If accessed frequently (e.g., in UI binding update loops), this could cause unnecessary garbage collection pressure. Consider caching if performance becomes an issue.

- **Interface contract unclear**: The `IPSDReportSettingsView` interface definition is not provided, so the expected contract beyond what's implemented here is unknown.