---
source_files:
  - Common/DTS.CommonCore/Base/Model/BaseModel.cs
generated_at: "2026-04-16T02:51:14.177689+00:00"
model: "Qwen/Qwen3-Coder-Next-FP8"
schema_version: 1
sha256: "ed3fc24e01d7b3b1"
---

# Model

### 1. **Purpose**  
`BaseModel<TModel>` is an abstract base class intended to provide foundational functionality for model objects within the `DTS.Common.Base` namespace. It encapsulates common state—specifically, a `Model` property of generic type `TModel` and an `IsSaved` flag indicating persistence status—and inherits from `BasePropertyChanged`, presumably to support property change notifications (e.g., for UI binding). Its role is to standardize model representation and lifecycle tracking across derived model types in the codebase.

---

### 2. **Public Interface**  

- **`public TModel Model { get; set; }`**  
  Gets or sets the underlying model object. The type `TModel` is constrained to be a reference type (`class`). This property holds the actual data payload for the model instance.

- **`public bool IsSaved { get; private set; }`**  
  Gets a read-only flag indicating whether the model has been persisted (e.g., saved to a database or backend). The setter is `private`, meaning only code within `BaseModel<TModel>` (e.g., derived classes or internal logic) can update this state.

- **`public BaseModel()`**  
  Public parameterless constructor for the abstract base class. Allows instantiation of concrete derived types. (Note: The class is `abstract`, so direct instantiation is not possible—this constructor is only invoked via derived classes.)

---

### 3. **Invariants**  
- `TModel` must be a reference type (enforced by `where TModel : class`).  
- `IsSaved` is initialized to `false` by default (C# default for `bool`) and can only be modified internally (via `private set`). External code can read but not directly set this flag.  
- The class inherits from `BasePropertyChanged`, implying that property change notifications (e.g., `INotifyPropertyChanged`) are expected to be supported, though the specific implementation details are not visible in this file.

---

### 4. **Dependencies**  

- **Depends on**:  
  - `DTS.Common.Base.BasePropertyChanged` (base class; assumed to implement `INotifyPropertyChanged` or similar).  
  - `DTS.Common.Base.IBaseModel` (interface implemented explicitly via `IBaseModel`).  
  - The `TModel` type parameter is constrained to `class`, but no other constraints are specified.  

- **Depended on by**:  
  - Concrete model classes in the codebase that derive from `BaseModel<TModel>` (e.g., `public class CustomerModel : BaseModel<Customer>`).  
  - Likely used by UI layers or services that interact with model instances via `IBaseModel` (e.g., for polymorphic handling of model state).

---

### 5. **Gotchas**  
- **`IsSaved` is not automatically managed**: The flag is exposed but has no built-in logic to update it (e.g., on save operations). Consumers must manually set `IsSaved = true` (e.g., in derived classes or service layers), which could lead to inconsistencies if overlooked.  
- **No validation or cloning support**: The class provides no hooks for validation, deep copying, or immutability—these must be implemented in derived classes if needed.  
- **`Model` property is nullable**: Since `TModel` is unconstrained beyond `class`, `Model` may be `null`. Consumers must handle null cases explicitly.  
- **No documentation for `IBaseModel` interface**: Its contract (e.g., members like `IsSaved`) is not visible here, so behavior relies on external definitions.  
- **`BasePropertyChanged` is not defined here**: Its behavior (e.g., how property change notifications are raised) is unknown from this file alone.  

*None identified from source alone.*