DP44/enriched-partialglm/DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.ChartOptions/View.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.ChartOptions/View/ChartOptionsView.xaml.cs	2026-04-16T11:18:57.795839+00:00	zai-org/GLM-5-FP8	1	2fdf05f68ae69d8d

Documentation: ChartOptionsView

1. Purpose

ChartOptionsView is a WPF view component implementing IChartOptionsView that provides user interface elements for configuring chart options. It serves as the visual layer for chart-related settings, specifically exposing available filter class options (CFC - likely "Channel Filter Classes" or "Calculated Filter Classes") to the UI for user selection.

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2. Public Interface

ChartOptionsView() (Constructor)

Signature: public ChartOptionsView()

Initializes the view component by calling InitializeComponent(), which loads the associated XAML layout.

AvailableCFC (Property)

Signature: public List<IFilterClass> AvailableCFC { get; }

Returns: A List<IFilterClass> containing available filter class options.

Behavior: Creates a new instance of AnalogSettingDefaults on each access and returns its FilterOptions property. This property is read-only (getter only).

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3. Invariants

• The AvailableCFC property will never return null (assuming AnalogSettingDefaults.FilterOptions never returns null, which is not verifiable from this source alone).
• The view always implements IChartOptionsView interface contract.
• InitializeComponent() must be called exactly once during construction (handled by WPF framework conventions).

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4. Dependencies

This module depends on:

• DTS.Common.Interface - Provides IChartOptionsView interface
• DTS.Common.Interface.Sensors.SoftwareFilters - Provides IFilterClass interface
• DTS.SensorDB - Provides AnalogSettingDefaults class

What depends on this module:

• Not determinable from this source file alone. Consumers would be whatever module creates or references ChartOptionsView instances.

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5. Gotchas

1. Object allocation on every property access: The AvailableCFC property instantiates a new AnalogSettingDefaults object every time it is read. If this property is data-bound in XAML and accessed frequently, it could create unnecessary object allocations and GC pressure. Consider whether this should be cached or lazy-loaded.

2. FB 13120 reference: The comment references "FB 13120" which appears to be an issue/feature tracking identifier. The context or resolution of this tracking item is not available from the source.

3. Unknown interface contract: The requirements of IChartOptionsView are not visible in this source, so it is unclear if AvailableCFC fulfills an interface member or is an additional public member.