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DP44/enriched-qwen3-coder-next/DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.AddCalculatedChannel/Resources.md
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DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.AddCalculatedChannel/Resources/TranslateExtension.cs
DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.AddCalculatedChannel/Resources/StringResources.Designer.cs
2026-04-16T13:58:32.085292+00:00 zai-org/GLM-5-FP8 1 5726c0d4d71935f1

Documentation: DTS.Viewer.AddCalculatedChannel.Resources

1. Purpose

This module provides localization infrastructure for the "Add Calculated Channel" feature within the DTS Viewer application. It enables XAML-based UI elements to bind to localized strings at design-time and runtime through a WPF markup extension pattern, while the StringResources class serves as a strongly-typed accessor for culture-specific strings related to calculation types, channel operations, IR-TRACC measurements, and validation error messages.

2. Public Interface

TranslateExtension (MarkupExtension)

Class Definition:

[MarkupExtensionReturnType(typeof(string))]
public class TranslateExtension : MarkupExtension

Constructor:

public TranslateExtension(string key)

Initializes the extension with a resource key to look up.

Method:

public override object ProvideValue(IServiceProvider serviceProvider)

Returns the localized string for the provided _key. Returns #stringnotfound# if _key is null or empty. Returns #stringnotfound# <key> (where <key> is the actual key value) if the resource manager returns null for the given key.

StringResources (Auto-generated Resource Class)

Class Definition:

internal class StringResources

Properties:

Property Type Description
ResourceManager global::System.Resources.ResourceManager (static) Cached ResourceManager instance for the DTS.Viewer.AddCalculatedChannel.Resources.StringResources resource bundle
Culture global::System.Globalization.CultureInfo (static) Gets or sets the current thread's CurrentUICulture for resource lookups

Resource String Properties (static, read-only):

Property Name Default Value (from comments)
AddCalculatedChannel "Add Calculated Channel"
CalculatedChannel_Average "Average"
CalculatedChannel_Sum "Sum"
CalculatedChannel_IRTRACC3D "3D IR-TRACC (upper thorax)"
CalculatedChannel_IRTRACC3D_Abdomen "3D IR-TRACC (abdomen)"
CalculatedChannel_IRTRACC3D_LowerThorax "3D IR-TRACC (lower thorax)"
CalculatedChannel_IRTRACC3D_Thorax "3D IR-TRACC (thorax)"
CalculatedChannel_IRTRACC3DAbdomen "3D IR-TRACC (abdomen)"
CalculatedChannel_IRTRACC3DLowerThorax "3D IR-TRACC (lower thorax)"
Calculation "Calculation"
CALCULATION_Cos "Cosine"
CALCULATION_Derivative "Derivative"
CALCULATION_DoubleIntegral "Double integral"
CALCULATION_Integral "Integral"
CALCULATION_Sin "Sine"
CALCULATION_ThreeDIRTracc "3D IR-TRACC (upper thorax)"
CALCULATION_ThreeDIRTraccAbdomen "3D IR-TRACC (abdomen)"
CALCULATION_ThreeDIRTraccLowerThorax "3D IR-TRACC (lower thorax)"
CalculationInputChannel "Calculation Input Channel"
Channel "Channel"
ChannelName "Channel Name"
ClipLengthMS "Clip length (ms)"
Description "Description"
HICAccelerationX "Acceleration X"
HICAccelerationY "Acceleration Y"
HICAccelerationZ "AccelerationZ"
HICRequires3Channels "Error: Head injury criterion requires 3 channels."
InputChannels "Input channels"
ISOCode "ISO Code"
NoChannelsIncluded "Error: No channels included."
ResultantUnitsDontMatch "Error: Units don't match for all input channels."
SampleRatesDontMatch "Error: Sample rates don't match for all input channels."
SuperSamplingWarning "Calculation contains multiple sample rates. Input will be resampled to the highest sample rate using linear interpolation."
ThreeD_IRTracc "IR-TRACC"
ThreeD_RotPot1 "R. Pot Y"
ThreeD_RotPot2 "R. Pot Z"

3. Invariants

  • TranslateExtension return guarantee: ProvideValue always returns a non-null string object; it never returns null.
  • Error indicator format: Missing keys are indicated by the constant #stringnotfound# (exact literal, lowercase), optionally followed by a space and the key name.
  • StringResources visibility: The StringResources class is internal and only accessible within the DTS.Viewer.AddCalculatedChannel assembly.
  • Auto-generation constraint: StringResources.Designer.cs is auto-generated by System.Resources.Tools.StronglyTypedResourceBuilder (version 17.0.0.0). Manual edits will be lost upon regeneration.
  • Resource bundle path: Resources are loaded from the manifest resource name "DTS.Viewer.AddCalculatedChannel.Resources.StringResources".

4. Dependencies

This module depends on:

  • System (core types)
  • System.Windows.Markup (for MarkupExtension and MarkupExtensionReturnTypeAttribute)
  • System.Resources (for ResourceManager)
  • System.Globalization (for CultureInfo)
  • System.CodeDom.Compiler, System.Diagnostics, System.Runtime.CompilerServices, System.ComponentModel, System.Diagnostics.CodeAnalysis (for auto-generated attributes)

What depends on this module:

  • Inferred: XAML files within the DTS.Viewer.AddCalculatedChannel namespace that use the {local:Translate KeyName} markup extension syntax for localized UI strings.
  • Inferred: Code-behind files that reference StringResources.<PropertyName> for error messages and labels.

5. Gotchas

  1. Duplicate/near-duplicate resource keys: Several IR-TRACC-related strings exist with different naming conventions that produce identical default values:

    • CalculatedChannel_IRTRACC3D_Abdomen and CalculatedChannel_IRTRACC3DAbdomen both default to "3D IR-TRACC (abdomen)"
    • CalculatedChannel_IRTRACC3D_LowerThorax and CalculatedChannel_IRTRACC3DLowerThorax both default to "3D IR-TRACC (lower thorax)"
    • CALCULATION_ThreeDIRTracc and CalculatedChannel_IRTRACC3D both default to "3D IR-TRACC (upper thorax)"

    This may indicate a naming convention migration or accidental duplication. The source alone does not clarify which keys are actively used.

  2. Inconsistent key naming conventions: Resource keys use at least three different naming patterns:

    • PascalCase (e.g., Channel, Description)
    • Category_Property (e.g., CalculatedChannel_Average)
    • CATEGORY_Property (e.g., CALCULATION_Sin, CALCULATION_Derivative)

    Developers adding new keys should verify which convention is expected.

  3. Typo in HICAccelerationZ: The default value is "AccelerationZ" (no space), whereas HICAccelerationX and HICAccelerationY have spaces ("Acceleration X", "Acceleration Y"). This inconsistency is visible in the source comments.

  4. NotFound constant is private: The NotFound constant in TranslateExtension is private const string, so consumers cannot reference it for comparison. The literal #stringnotfound# would need to be hardcoded for string comparison checks.

  5. No null-coalescing on empty string: ProvideValue checks string.IsNullOrEmpty(_key), returning NotFound without appending the key. However, if _key is an empty string, the caller receives #stringnotfound# without indication that an empty string was passed.

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