Properties

Context: Properties provide controlled access to private fields using get and set accessors. They encapsulate validation and logic.

Basic Property

private int _age;
public int Age
{
    get { return _age; }
    set { _age = value; }
}

Expression‑Bodied Syntax (C# 7+)

public int Age
{
    get => _age;
    set => _age = value;
}

Read‑Only Property (only getter)

public string FullName => $"{FirstName} {LastName}";

Write‑Only Property (only setter)

private string _secret;
public string Secret { set => _secret = value; }

Validation in Setter

private int _score;
public int Score
{
    get => _score;
    set
    {
        if (value >= 0 && value <= 100)
            _score = value;
        else
            throw new ArgumentOutOfRangeException();
    }
}