!!!请教C#中事件触发问题？？？

没太明白你的意思不知道这和你问的有没有关系
tbNew是个Button,下面为自定义其MouseUp事件方法： tbNew.MouseUp+= new System.Windows.Forms.MouseEventHandler(this.tbNew_MouseUp);

private void tbTmpNew_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{//写入你要做的事的代码}

假设你声明了如下的委托：
public delegate void EventHandler(object sender, EventArgs e);在一个名叫A的类中，对这个委托声明了如下的事件：
class A
{
//...
public event EventHandler MyEvent;
//...
}在A中合适的地方激发你的事件：
//...
this.MyEvent(this,new System.EventArgs());
//...在A外部的类中有A的实例
private A _a;用如下的办法来响应你的事件：
1、声明事件处理函数：
private void A_MyEvent(object sender, EventArgs e)
{
//Your code here
}2、在合适的地方为_a添加事件处理：
_a.MyEvent+=new EventHandler(A_MyEvent);
这样，A_MyEvent就能够响应A的MyEvent事件了。

you must bound the event delegate before used everywhere.
Ordinary, in the form InitializeComponent method,try it:this.textBox1.Change+= new System.EventHandler(this.textBox1_Change);

在c#里，没有象vb.net那样，直接可以选择触发事件吗？如双击事件等。

在C#中,很多事件必须自己声明.
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如下所示：
using System;namespace testform
{
    /// <summary>
    /// Event source
    /// </summary>
    public class Bird
    {
        public Bird()
        {
        }
        public void Flying()
        {
            this.OnBirdEvent(BirdStatus.Flying);
        }
        public void Dead()
        {
            this.OnBirdEvent(BirdStatus.Dead);        }
        public void Sleep()
        {
            this.OnBirdEvent(BirdStatus.Sleeping);
        }
        private void OnBirdEvent(BirdStatus s)
        {
            if(this.BirdEvent!=null)
            {
                this.BirdEvent(this,new BirdEventArgs(s));
            }
        }
        public event BirdEventHandler BirdEvent;
    }
    public delegate void BirdEventHandler(object sender,BirdEventArgs e);
    public class BirdEventArgs:EventArgs
    {
        private BirdStatus _s;

        public BirdEventArgs(BirdStatus s)
        {
            this._s=s;

        }

        public BirdStatus Status
        {
            get
            {
                return this._s;
            }
        }

    }
    public enum BirdStatus
    {
        Flying,
        Sleeping,
        Dead
    }
    /// <summary>
    /// Event Target
    /// </summary>
    public class Hunter
    {
        private Bird bird;
        public Hunter()
        {
            bird=new Bird();
            bird.BirdEvent+=new BirdEventHandler(this.OnWatch);
        }
        private void OnWatch(object sender,BirdEventArgs e)
        {
            switch(e.Status)
            {
                case BirdStatus.Flying:
                    this.Sleep();
                    break;
                case BirdStatus.Dead:
                    this.FireBird();
                    break;
                case BirdStatus.Sleeping:
                    this.KillBird();
                    break;
            }
        }
        private void KillBird()
        {
            ...

        }
        private void FireBird()
        {
            ...
        }
        private void Sleep()
        {
            ...
        }
    }
}

iamsoloist(Soloist) 你问的好，我也正想问这个问题呢？ wenzm(疯之驴) 你回答的程序我已经写出来了，但我想知道的就像 iamsoloist(Soloist)问的问题，比如如何让鼠标或一个操作响应这一事件？
感觉vegetablebird(失败到这个岁数还在当流氓)回答的可能有些接近，但不不大清楚C#到底是怎么触发事件的？还是不太明白！

这是一个更完整的：
using System;
using System.Windows.Forms;
namespace testform
{
    /// <summary>
    /// Event source
    /// </summary>
    public class Bird
    {
        public Bird()
        {
        }
        public void Flying()
        {
            this.OnBirdEvent(BirdStatus.Flying);
        }
        public void Dead()
        {
            this.OnBirdEvent(BirdStatus.Dead);        }
        public void Sleep()
        {
            this.OnBirdEvent(BirdStatus.Sleeping);
        }
        private void OnBirdEvent(BirdStatus s)
        {
            if(this.BirdEvent!=null)
            {
                this.BirdEvent(this,new BirdEventArgs(s));
            }
        }
        public event BirdEventHandler BirdEvent;
    }
    public delegate void BirdEventHandler(object sender,BirdEventArgs e);
    public class BirdEventArgs:EventArgs
    {
        private BirdStatus _s;

        public BirdEventArgs(BirdStatus s)
        {
            this._s=s;

        }

        public BirdStatus Status
        {
            get
            {
                return this._s;
            }
        }

    }
    public enum BirdStatus
    {
        Flying,
        Sleeping,
        Dead
    }
    /// <summary>
    /// Event Target
    /// </summary>
    public class Hunter
    {
        //private Bird bird;
        public Hunter(Bird bird)
        {
            //bird=new Bird();
            bird.BirdEvent+=new BirdEventHandler(this.OnWatch);
        }
        private void OnWatch(object sender,BirdEventArgs e)
        {
            switch(e.Status)
            {
                case BirdStatus.Flying:
                    this.Sleep();
                    break;
                case BirdStatus.Dead:
                    this.FireBird();
                    break;
                case BirdStatus.Sleeping:
                    this.KillBird();
                    break;
            }
        }
        private void KillBird()
        {
            //...
            MessageBox.Show("Killed");
        }
        private void FireBird()
        {
            //...
            MessageBox.Show("FireBird");
        }
        private void Sleep()
        {
            //...
            MessageBox.Show("Sleeping");
        }
    }
}
如果触发，可以在Main函数中写以下代码：
Bird b = new Bird();
Hunter h = new Hunter(b);
b.Flying();就可以了! :)

调试易

!!!请教C#中事件触发问题？？？

解决方案 »