关于ASP.NET Boilerplate命名规范与文件结构的技术问询

Great questions! Let's break down each one based on ASP.NET Boilerplate's design principles, especially its alignment with Domain-Driven Design (DDD) and SOLID:

1. Why TaskListDto instead of TaskDto? #

ABP's naming convention for Dtos is intentional to clarify their purpose—it's not about being misleading, but about making the codebase more explicit.

In the SimpleTaskApp example, TaskListDto is designed specifically for displaying a list of tasks, which usually includes a subset of fields (like title, state, creation time) that are relevant for a list view. A plain TaskDto, on the other hand, might be a more complete representation of a task (including all fields, maybe even related entities) used for detail views or full data transfer.

By adding suffixes like ListDto, CreateDto, UpdateDto, you immediately know what the Dto is used for without having to look at its properties. This avoids ambiguity as your project grows—you won't have multiple TaskDto classes doing different things, which would get confusing fast.

2. Why use plural folder names for entities (e.g., Tasks/Task.cs)? #

This ties directly to Domain-Driven Design (DDD) practices that ABP follows. Plural folder names aren't just about grammar—they represent aggregates or groups of related domain objects, not just a single entity file.

For example, the Tasks folder won't only contain Task.cs; it might also include related items like TaskState.cs (a value object), TaskManager.cs (a domain service), or ITaskRepository.cs (a repository interface). The plural name signals that this folder is a container for everything related to the "Task" domain concept, not just the single entity class. It's a way to group cohesive domain logic together, making the structure more intuitive for anyone navigating the codebase.

3. Why separate entities into individual folders instead of a single Entities folder? #

Again, this is about high cohesion and clear boundaries—core principles of both DDD and SOLID, which ABP prioritizes.

If you put all entities into a single Entities folder, as your project scales, you'll end up with a cluttered directory full of unrelated classes (Task, Person, Order, etc.), and it becomes hard to find the related domain logic (like services, repositories, value objects) that belong with each entity.

By grouping each entity (and its associated domain components) into its own folder, you create self-contained modules for each domain concept. For example, everything related to tasks lives in Tasks/, everything related to people lives in People/. This makes it easier to maintain, test, and extend each domain area independently—you don't have to dig through a huge list of files to find what you need for a specific feature. It also reinforces the idea that each domain concept is a distinct, cohesive unit, which aligns with SOLID's single responsibility principle.

内容的提问来源于stack exchange，提问作者Ayub