刚学c#,构造函数和属性问题，望高手解答，谢谢

Question

实例化后调用构造函数，但是age字段想要利用属性判断，但是好像不走属性，调用好构造函数就返回了，所以age总是返回0，不知道怎么才能调用属性呢namespace ConsoleApplication4
{
    class Class1
    {
        private string name;
        private int age;
        public Class1()
        {
        }
        public Class1(string name,int age)
        {
            this.name = name;
            this.age=this.AgeProp;           知道此句有问题
        }
        public string NameProp
        {
            get
            {
                return this.name;
            }
        }
        public int AgeProp
        {
            get
            {
                return this.age;
            }
            set
            {
                if (value > 0 && value < 150)
                {
                    this.age = value;
                }
                else
                {
                    throw new Exception("age must be 0 between 150");
                }
            }
        }        
    }
}namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(new Class1("a", 30).AgeProp);
            Console.ReadKey();
        }
    }
}

Answer 1

 public string NameProp
  {
  get
  {
  return this.name;
  }
  set
  {
   this.name = value;
  }
  }
this.age=this.AgeProp;
=>
this.age=age;

Answer 2

public Class1(string name,int age)
{
    this.name = name;
    //this.age=this.AgeProp; 知道此句有问题
    this.AgeProp = age;  //这样便会走到AgeProp的set块了
 }