Why reflection is needed in C Sharp (C#) - See It in Action

Why reflection is needed

📖 Scenario: Imagine you are building a tool that needs to work with different types of objects without knowing their details in advance. Reflection helps you look inside these objects while the program is running.

🎯 Goal: Learn how to use reflection in C# to inspect an object's type and properties at runtime.

📋 What You'll Learn

Create a simple class with some properties

Create an instance of the class

Use reflection to get the type name and property names

Print the type and property names to the console

💡 Why This Matters

🌍 Real World

Reflection is used in tools like serializers, debuggers, and frameworks that need to work with unknown types.

💼 Career

Understanding reflection helps you build flexible and powerful C# applications, a valuable skill in many software development jobs.

1

Create a class called Person with properties Name and Age

Write a class called Person with two public properties: Name of type string and Age of type int.

C Sharp (C#)

// Your code here

Need a hint?

Use public class Person and add public string Name { get; set; } and public int Age { get; set; }.

2

Create an instance of Person called person with Name = "Alice" and Age = 30

Create a variable called person and set it to a new Person object with Name set to "Alice" and Age set to 30.

C Sharp (C#)

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

// Your code here

Need a hint?

Use Person person = new Person { Name = "Alice", Age = 30 }; to create the object.

3

Use reflection to get the type name and property names of person

Use Type personType = person.GetType() to get the type. Then use personType.Name to get the type name. Use personType.GetProperties() to get the properties.

C Sharp (C#)

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

Person person = new Person { Name = "Alice", Age = 30 };

// Your code here

Need a hint?

Use person.GetType() and GetProperties() methods to inspect the object.

4

Print the type name and property names of person

Print the type name using Console.WriteLine(personType.Name). Then use a foreach loop with PropertyInfo property in properties to print each property name using Console.WriteLine(property.Name).

C Sharp (C#)

using System;
using System.Reflection;

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

Person person = new Person { Name = "Alice", Age = 30 };

Type personType = person.GetType();
PropertyInfo[] properties = personType.GetProperties();

// Your code here

Need a hint?

Use Console.WriteLine to print the type and property names.