71 lines
5.1 KiB
Markdown
71 lines
5.1 KiB
Markdown
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---
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source_files:
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- Common/DTS.Common.ISO/Properties/AssemblyInfo.cs
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- Common/DTS.Common.ISO/Properties/Resources.Designer.cs
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generated_at: "2026-04-16T03:29:22.576207+00:00"
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model: "Qwen/Qwen3-Coder-Next-FP8"
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schema_version: 1
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sha256: "67d8506a4452cfae"
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---
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# Properties
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## Documentation Page: `DTS.Common.ISO` Assembly (ISO Module)
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---
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### 1. **Purpose**
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This module (`DTS.Common.ISO`) is a .NET class library assembly that provides shared infrastructure and resources for ISO-related functionality within the DTS (presumably *Data Transfer System* or domain-specific acronym) codebase. Based on the source files, its primary role is to define assembly metadata (e.g., versioning, COM visibility) and expose strongly-typed access to embedded UI resources—specifically, two bitmap images (`DTS_2C_Logo` and `DTS_2C_web_small`). It does not contain business logic or core functionality beyond resource management, suggesting it serves as a lightweight dependency for UI or presentation layers that require consistent branding or iconography.
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---
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### 2. **Public Interface**
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The assembly exposes **no public types or methods** beyond the auto-generated `Resources` class. All public surface area is contained in the `DTS.Common.ISO.Properties.Resources` class:
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- **`internal static class Resources`**
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A strongly-typed resource class for accessing embedded resources (bitmaps).
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- **`ResourceManager ResourceManager { get; }`**
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Returns a cached `System.Resources.ResourceManager` instance used to look up resources by name. Initialized lazily on first access.
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- **`CultureInfo Culture { get; set; }`**
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Gets or sets the UI culture used for resource lookups. Allows overriding the current thread’s `CurrentUICulture` for resource resolution.
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- **`Bitmap DTS_2C_Logo { get; }`**
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Returns the embedded bitmap resource named `"DTS_2C_Logo"`. Throws `MissingManifestResourceException` if the resource is not found.
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- **`Bitmap DTS_2C_web_small { get; }`**
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Returns the embedded bitmap resource named `"DTS_2C_web_small"`. Throws `MissingManifestResourceException` if the resource is not found.
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> **Note**: All members of `Resources` are `internal`, meaning they are only accessible within the same assembly (`DTS.Common.ISO`). No public types or methods are exposed to external consumers.
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---
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### 3. **Invariants**
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- **Resource names are fixed and case-sensitive**: Resource lookups rely on exact string keys (`"DTS_2C_Logo"`, `"DTS_2C_web_small"`). Mismatches in casing or spelling will cause `ResourceManager.GetObject()` to return `null`, which is then cast to `Bitmap`, potentially causing `InvalidCastException` or `NullReferenceException` at runtime.
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- **`ResourceManager` is lazily initialized and thread-safe for read access**: The `ResourceManager` property uses a null-check-and-assign pattern. While not explicitly synchronized, the .NET `ResourceManager` class is thread-safe for concurrent reads.
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- **Assembly identity is static**: Version is fixed at `1.0.0.0` (both `AssemblyVersion` and `AssemblyFileVersion`). The `AssemblyCulture` is empty (indicating a neutral/satellite assembly not tied to a specific culture).
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- **COM visibility is disabled**: `ComVisible(false)` ensures types in this assembly are not exposed to COM by default.
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---
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### 4. **Dependencies**
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- **Dependencies *of* this assembly**:
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- `System.Drawing` (for `System.Drawing.Bitmap`)
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- `System.Resources` (for `ResourceManager`, `CultureInfo`)
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- Core .NET runtime (`mscorlib`, `System`)
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- **Dependencies *on* this assembly**:
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- Not inferable from source alone. However, given the embedded resources (`DTS_2C_Logo`, `DTS_2C_web_small`), it is likely referenced by UI projects (e.g., WinForms, WPF, or reporting modules) that require consistent DTS branding assets.
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---
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### 5. **Gotchas**
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- **No public API surface**: External consumers cannot directly use this assembly for functionality beyond resource access, and even resource access is limited to internal use (since `Resources` is `internal`). If external access is needed, the class must be made `public`.
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- **Resource file mismatch risk**: The `Resources.Designer.cs` file references `"ISO.Properties.Resources"` as the base name for the `ResourceManager`. This assumes a corresponding `Resources.resx` file exists in the `Properties/` folder with matching embedded resources. If the `.resx` file is missing, renamed, or misconfigured, resource lookups will fail.
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- **No localization logic**: While `Culture` can be set, the assembly itself does not define any localized strings or fallback logic. Only bitmaps are exposed, so culture changes affect only resource *lookup* (e.g., for satellite assemblies), not behavior.
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- **Auto-generated code warning**: The `Resources.Designer.cs` header explicitly warns that manual edits will be lost on regeneration. Changes to resources must be made via `.resx` files and rebuilt.
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- **No versioning strategy**: Fixed version `1.0.0.0` may cause issues if this assembly evolves independently. Consider aligning with semantic versioning or build-time version injection.
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> **None identified from source alone** beyond the above—no complex logic, edge cases, or deprecated patterns are evident.
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