输入名称时，我的代码将返回StackOverFlowException ...我不明白为什么

Question

My code's purpose is to change my 'dispatcher' object's name and whilst this is done through the dispatcher's name property's setter, it runs OnNameChange() where I raise the event.

This is where I want the "OnDispatcherNameChange" method to be run where it displays a message ("Dispatcher's name changed to ").

However, when I run the main, and enter a name, it returns a StackOverFlowException. How can I fix this?

This is my code:

using System;

namespace Excercise_Events
{

    public class NameChangeEventArgs : EventArgs
    {
        public string Name { get; private set; }

        public NameChangeEventArgs(string name)
        {
            this.Name = name;
        }
    }
    public class Dispatcher
    {
        public string Name
        {
            get
            {
                return Name; 
            }
            set
            {
                var nameChange = new NameChangeEventArgs(Name);
                OnNameChange(nameChange);

                Name = value; 
            } 
        }

        public delegate void NameChangeEventHandler(object Source, NameChangeEventArgs args);

        public event NameChangeEventHandler NameChange;

        protected virtual void OnNameChange(NameChangeEventArgs args)
        {
            NameChange?.Invoke(this, new NameChangeEventArgs(args.Name));
        }

    }

    public class Handler
    {
        public void OnDispatcherNameChange(object Source, NameChangeEventArgs args)
        {
            Console.WriteLine("Dispatcher's name changed to {0}", args.Name);
        } 
    }

    class Program
    {
        static void Main(string[] args)
        {
            var dispatcher = new Dispatcher();
            var handler = new Handler();

            dispatcher.NameChange += handler.OnDispatcherNameChange;

            while (true)
            {
                Console.Write("Enter new Name: ");
                string name = Console.ReadLine();
                if (name.ToLower() == "end")
                {
                    break; 
                }
                dispatcher.Name = name;
            }
         }
    }
}

Answer 1

The Name property is the problem. You have an infinite loop where the setter is calling the property again to set another value.

Change it to use a backing field:

private string _name;

public string Name
{
    get
    {
        return _name; 
    }
    set
    {
        var nameChange = new NameChangeEventArgs(Name);
        OnNameChange(nameChange);

        _name = value; 
     } 
}