C# Feature – Auto-implemented properties

Overview

Auto-properties remove the need for explicit backing fields when no custom logic is required.

Introduced In

C# 3 (2007)

Before

private string _name;
public string Name { get => _name; set => _name = value; }

After

public string Name { get; set; }

Annotated Example

public class Person { public string Name { get; init; } }

Gotchas & Best Practices

• Use init for immutability where possible (C# 9).

Related Features

• Init-only setters
• Required members
• Properties & Events

Version Notes

• init added in C# 9; required members in C# 11.