为何我定义的委托名,录入new单词后,不会自动列出呢?是本来这样还是我代码有误造成不能自动列出呢?
几个文件的代码如下:
program.csusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;namespace Ch13Ex02
{ class Program
{
static void Main(string[] args)
{
Connection myConnection = new Connection();
Display myDisplay = new Display(); //为何下面这行代码中,new 后面的 MessageHandle 不会自动列出呢?(这是在Connection类中定义的委托呀!)
myConnection.messageArrived += new MessageHandle(myDisplay.DisplayMessage);
myConnection.Connect();
Console.WriteLine("the end");
Console.ReadKey();
}
}
}
connection.cs:using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;namespace Ch13Ex02
{
//定义一个委托类型变量
public delegate void MessageHandle(string messageText); public class Connection
{
public event MessageHandle messageArrived;
private Timer pollTimer; public Connection()
{
pollTimer = new Timer(100);
pollTimer.Elapsed += new ElapsedEventHandler(CheckForMessage);
} public void Connect()
{
pollTimer.Start();
} public void Disconnect()
{
pollTimer.Stop();
} private static Random random = new Random(); private void CheckForMessage(object source, ElapsedEventArgs e)
{
Console.WriteLine("checking ----------------------------------------------");
if ((random.Next(9) == 0) && messageArrived != null)
{
messageArrived("Hello !!!");
}
}
}
}
display.cs:using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace Ch13Ex02
{
class Display
{
public void DisplayMessage(string message)
{
Console.WriteLine("message arrived:{0}",message);
}
}
}
几个文件的代码如下:
program.csusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;namespace Ch13Ex02
{ class Program
{
static void Main(string[] args)
{
Connection myConnection = new Connection();
Display myDisplay = new Display(); //为何下面这行代码中,new 后面的 MessageHandle 不会自动列出呢?(这是在Connection类中定义的委托呀!)
myConnection.messageArrived += new MessageHandle(myDisplay.DisplayMessage);
myConnection.Connect();
Console.WriteLine("the end");
Console.ReadKey();
}
}
}
connection.cs:using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;namespace Ch13Ex02
{
//定义一个委托类型变量
public delegate void MessageHandle(string messageText); public class Connection
{
public event MessageHandle messageArrived;
private Timer pollTimer; public Connection()
{
pollTimer = new Timer(100);
pollTimer.Elapsed += new ElapsedEventHandler(CheckForMessage);
} public void Connect()
{
pollTimer.Start();
} public void Disconnect()
{
pollTimer.Stop();
} private static Random random = new Random(); private void CheckForMessage(object source, ElapsedEventArgs e)
{
Console.WriteLine("checking ----------------------------------------------");
if ((random.Next(9) == 0) && messageArrived != null)
{
messageArrived("Hello !!!");
}
}
}
}
display.cs:using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace Ch13Ex02
{
class Display
{
public void DisplayMessage(string message)
{
Console.WriteLine("message arrived:{0}",message);
}
}
}
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myConnection.messageArrived += new MessageHandle(myDisplay.DisplayMessage);MessageHandle是我在Connection类中定义的委托呀,
我想问,它应该自动列出吗?即我输入:
myConnection.messageArrived += new 以后,是不是应该自动列出?
我这里没有自动列出,我不知是我代码有问题,还是本来就不会自动列出的,
如果应该列出,我的代码哪有问题呢?
另外,这个代码执行时不报错,没有任何问题的!