---
source_files:
  - Common/DTS.Common/Enums/Groups/GroupImport.cs
generated_at: "2026-04-16T03:20:49.578686+00:00"
model: "Qwen/Qwen3-Coder-Next-FP8"
schema_version: 1
sha256: "d539759851a4e471"
---

# Groups

## 1. Purpose  
This module defines a strongly-typed enumeration for the sequential steps involved in a group import workflow. It resides in the `DTS.Common.Enums.Groups` namespace and serves as a centralized, type-safe reference for stages in the import process—specifically `Options`, `Preview`, and `Import`. Its purpose is to ensure consistency across the codebase when referencing or routing through these logical steps, likely used in UI navigation, state management, or workflow orchestration components.

## 2. Public Interface  
The module exposes a single nested enum, `Steps`, defined inside the abstract class `GroupImportEnums`. Since `GroupImportEnums` is `abstract` and contains only the enum, it is not instantiable and serves solely as a namespace-like container.

- **`GroupImportEnums.Steps`**  
  An enum with three named constants:  
  - `Steps.Options` — Represents the initial configuration step where user-provided options for the import are collected or validated.  
  - `Steps.Preview` — Represents the step where imported data is displayed for user review before final commitment.  
  - `Steps.Import` — Represents the final step where data is persisted or committed.  

No methods, properties, or other public members are defined.

## 3. Invariants  
- The `Steps` enum values are ordered: `Options` (0), `Preview` (1), `Import` (2). This implies a strict sequential progression—no step may be skipped or revisited without explicit reset logic elsewhere.  
- The enum is *exhaustive* for the documented workflow: only these three steps are defined. Any logic assuming additional steps (e.g., `Complete`, `Error`) is not supported by this definition.  
- The `GroupImportEnums` class is `abstract` and contains no instance members; it is not intended for instantiation or inheritance beyond its current use as a container.

## 4. Dependencies  
- **No external dependencies**: The file imports no namespaces beyond the standard `namespace` declaration.  
- **Consumers**: Based on naming and structure, this enum is likely consumed by:  
  - UI components (e.g., step-by-step wizards or view models)  
  - Workflow/state machines managing group import operations  
  - Serialization/deserialization logic (e.g., mapping step names to/from strings or integers)  
  However, the source file alone does not specify concrete dependents.

## 5. Gotchas  
- **No validation or state transition logic**: The enum itself does not enforce valid transitions (e.g., `Preview` → `Options` is syntactically allowed but may be semantically invalid). Consumers must implement their own transition rules.  
- **`abstract class` as namespace container**: Using an `abstract class` solely to nest the enum is unconventional in modern C# (where `static class` or direct namespace-level enums are preferred). This may indicate legacy design or a pattern to avoid polluting the parent namespace.  
- **No XML documentation**: The source provides no comments, so semantic intent (e.g., whether `Preview` is read-only or allows edits) is ambiguous.  
- **No extensibility hooks**: Adding new steps requires modifying this enum, which may ripple across consumers. No versioning or extensibility mechanism is evident.  
- **None identified from source alone.**