---
source_files:
  - Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsView.cs
  - Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsViewModel.cs
generated_at: "2026-04-16T12:19:49.445469+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "b07af412c78e07b1"
---

# Documentation: Customer Details Interfaces

## 1. Purpose

This module defines two marker interfaces—`ICustomerDetailsView` and `ICustomerDetailsViewModel`—that establish type identity for customer details components within a Model-View-ViewModel (MVVM) architecture. These interfaces exist to provide a contract for customer-specific views and view models, enabling type-safe binding, dependency injection, and navigation patterns while inheriting core behaviors from base interfaces in the `DTS.Common.Base` namespace.

---

## 2. Public Interface

### `ICustomerDetailsView`
- **Namespace:** `DTS.Common.Interface`
- **Inheritance:** `IBaseView` (from `DTS.Common.Base`)
- **Signature:**
  ```csharp
  public interface ICustomerDetailsView : IBaseView { }
  ```
- **Behavior:** Empty marker interface. Any concrete view implementing this interface signals that it represents a customer details screen. All actual behavior and members are inherited from `IBaseView`.

### `ICustomerDetailsViewModel`
- **Namespace:** `DTS.Common.Interface`
- **Inheritance:** `IBaseViewModel` (from `DTS.Common.Base`)
- **Signature:**
  ```csharp
  public interface ICustomerDetailsViewModel : IBaseViewModel { }
  ```
- **Behavior:** Empty marker interface. Any concrete view model implementing this interface signals that it provides the presentation logic for a customer details view. All actual behavior and members are inherited from `IBaseViewModel`.

---

## 3. Invariants

- **Type identity guarantee:** Any class implementing `ICustomerDetailsView` or `ICustomerDetailsViewModel` must also satisfy the contracts of `IBaseView` or `IBaseViewModel` respectively.
- **No additional members:** Neither interface defines its own properties, methods, or events; they rely entirely on their base interfaces for functionality.
- **Naming convention:** The interfaces follow a naming pattern suggesting a 1:1 correspondence between `ICustomerDetailsView` and `ICustomerDetailsViewModel`.

**Note:** Specific invariants regarding `IBaseView` and `IBaseViewModel` cannot be determined from the provided source files.

---

## 4. Dependencies

### This module depends on:
- `DTS.Common.Base` — Provides `IBaseView` and `IBaseViewModel` base interfaces.

### What depends on this module:
- Cannot be determined from the provided source files alone. Likely consumers include:
  - Concrete view implementations (e.g., WinForms, WPF, or web views displaying customer details)
  - Concrete view model implementations for customer details
  - Navigation or routing services that resolve views by interface type
  - Dependency injection configurations

---

## 5. Gotchas

- **Empty marker interfaces:** Both interfaces define no members of their own. If `IBaseView` and `IBaseViewModel` also lack meaningful members, these interfaces serve purely as type markers. This design is intentional for type discrimination but may confuse developers expecting explicit contracts.
- **Base interface contracts unknown:** The actual capabilities and requirements of these interfaces are entirely determined by `IBaseView` and `IBaseViewModel`. Developers must consult those base definitions to understand what members must be implemented.
- **Potential tight coupling to base types:** Any changes to `IBaseView` or `IBaseViewModel` will ripple to all implementers of these customer details interfaces.