C# make a class data member read only to parent?

Question

I need to make certain data members in a class read only to parent classes. I'm currently doing this to protect data. It's a LOT of duplicate code / writing...

Certainly there's a better way to do than what I'm currently doing below?

// Currently using method below...
public class example1
{	
	private int data;	
	public int Data() { return data; }
}

// Tried this but only constructor can modify value and not member functions of class.
public class example2
{		
	public int data {get;}
	public readonly int data;
}

Answer 1

A more succinct way is to have a property that has a public getter and private setter:

 public int MyProp { get; private set; }