C# Attributes and Reflection

Decorate code elements with attributes and inspect metadata at runtime.

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Attributes add metadata to your program. Attributes can be placed on classes, methods, or properties and queried at runtime via System.Reflection.

Key Takeaways: C# Attributes and Reflection

Mastering C# Attributes and Reflection helps you write clean and reliable C# code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

C# Attributes and Reflection Code Example

using System;

[AttributeUsage(AttributeTargets.Class)]
public class AuthorAttribute : Attribute {
    public string Name { get; }
    public AuthorAttribute(string name) { Name = name; }
}

[Author("CodesInTech")]
class SampleClass {}

class Program {
    static void Main() {
        var attrs = typeof(SampleClass).GetCustomAttributes(typeof(AuthorAttribute), false);
        var author = (AuthorAttribute)attrs[0];
        Console.WriteLine($"Class author: {author.Name}");
    }
}

Output

Class author: CodesInTech

Run this example on your own computer. The "Get Started" lesson shows how to set it up.

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C# Attributes and Reflection

💡 Key Takeaways: C# Attributes and Reflection

C# Attributes and Reflection Code Example

Key Takeaways: C# Attributes and Reflection