using System;
public class TestClass
{
public void RaiseTestEvent(string message)
{
if (TestEvent == null) return;
TestEvent(this, new TestEventArgs { Message = message });
}
public event EventHandler TestEvent;
}
public class TestEventArgs : EventArgs
{
public TestEventArgs() : base() { }
public string Message { get; set; }
}
class Program
{
static void Main(string[] args)
{
TestClass tc = new TestClass();
tc.TestEvent += Tc_TestEvent;
Console.WriteLine("按任意键引发事件");
Console.ReadKey();
tc.RaiseTestEvent("通过事件参数传递的字符串");
Console.WriteLine("按任意键退出");
Console.ReadKey();
}
private static void Tc_TestEvent(object sender, EventArgs e)
{
TestEventArgs te = (TestEventArgs)e;
Console.WriteLine(te.Message);
}
}
