Getting and setting properties by hand

Getting and setting properties by hand.cs

using System;

public class Student
{
    private int _id;
    private string _name;
    private const int PassValue = 70; //read only field

    public int Id
    {
        get { return this._id; }
        
        set
        {
            if (value <= 0)
            {
                throw new Exception("Id cannot be a negative value");
            }
            this._id = value;
        }
    }

    public string Name
    {
        get { return string.IsNullOrEmpty(this._name) ? "Name field is empty" : this._name; } //ternary operator (3 arguments)
        
        set
        {
            if (string.IsNullOrEmpty(value)) //if the string passed to this method is null or empty, throw exception
            {
                throw new Exception("Name cannot be null or empty.");
            }
            this._name = value;
        }        
    }

    public int GetPassValue //read only because no set method
    {
        get { return PassValue; }
    }


}


public class Program
{
    public static void Main()
    {
        Student S1 = new Student();
        S1.Id = 14412;
        S1.Name = "Derrik Nasca";

        Console.WriteLine("ID: {0}", S1.Id);
        Console.WriteLine("NAME: {0}", S1.Name);
        Console.WriteLine("PASSVALUE: {0}", S1.GetPassValue);

        Console.ReadKey();
    }
}