I need someone to correct my thinking on C# Properties (get & set)

Question

I am having a hard time understanding how properties are "connected" to backing fields. I've set up a common example. I often see get and set simplified to {get; set;}. Is this only appropriate when one field is present or can it still work with two same-type fields. If it does work, is the name property in this code acting on behalf of name or address or both? I'm having a hard time understanding the importance of the private field if the information that would be stored there is stored/accessed in a public property. Is that making sense?

using System;

namespace MyApplication
{
  class Program
  {
    static void Main(string[] args)
    {
      Person myObj = new Person();
      myObj.Name = "Liam";
      Console.WriteLine(myObj.Name);
    }
  }
  class Person
  {
    private string name;
    private string address; 
    public string Name {get; set;}  
  }
  
}

Answer 1

You don't need properties with backing fields. Particularly if they are publicly read-able and write-able.

No backing fields

There are a number of options without backing fields.

Public setters and getters

// inline value initialisation
var p1 = new Person()
{
    Name = "John"
};

// instantiation + setting
var p2 = new Person();
p2.Name = "John";

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

Public getters, private setters

// inline value initialisation
var p1 = new Person("John");

class Person
{
    public string Name {get; private set;} 

    public Person(string name)
    {
        this.Name = name;
    }
}

Or ...

// inline value initialisation
var p1 = new Person();
p1.SetSomeProps("John");

class Person
{
    public string Name {get; private set;} 

    public void SetSomeProps(string name)
    {
        this.Name = name;
    }
}

---

With backing fields

// inline value initialisation
var p1 = new Person()
{
    Name = "John"
};

// instantiation + setting
var p2 = new Person();
p2.Name = "John";

class Person
{
    private string theName = string.Empty;

    public string Name
    {
        get
        {
            return this.theName;
        }

        set(string value)
        {
            this.theName = value;
        }

    }  
}