C# 为控件添加自定义事件，自定义触发

先随便搞个事件吧

 public class TestEventrgs : EventArgs
    {

        private string _name;
        public string Name { get { return _name; } }

        private int  _age;
        public int Age { get { return _age; } }
        public TestEventrgs(string name,int age)
        {
            _name = name;
            _age = age;
        }
    }

分两种，自定义控件和winfrom下的已有控件

先来个自定义控件吧
随便搞个界面

上马

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CSDN
{
    public partial class UserControl1 : UserControl 
    {
        int ClickNuM = 0; //点击次数
        public event EventHandler TestEventrg;//自定义的事件


        public UserControl1()
        {
            InitializeComponent();
            this.TestEventrg += new EventHandler(DangeTip);//自定义事件绑定的方法
        }

        private void DangeTip(object sender, TestEventrgs e)
        {
            string tool = string.Format("危险提示：{0}你小子别狂点，仗着{1}岁手速快是吧!?",e.Name,e.Age);
            MessageBox.Show(tool);
        }

    

        protected override void OnClick(EventArgs e)
        {
            base.OnClick(e);
            ClickNuM++;
            if (ClickNuM>5)
            {
                //触发自定义事件
                this.TestEventrg?.Invoke(this,new TestEventrgs("ming",17));//输入的参数可以自己传入
                ClickNuM = 0;
            }
        }

    }
}

放到界面上，狂点之后

接下来是winfrom下的已有控件，以button为例子

先添加一个组件

改为继承 Button，并添加相应的自定义事件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CSDN
{
    public partial class MyButton : Button
    {
        public MyButton()
        {
            InitializeComponent();          
        }

        public event EventHandler TestEventrg;
     
        public MyButton(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
        }
    }
}

将组件从工具箱添加到界面，添加对应方法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CSDN
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        int ClickNuM = 0;

        private void myButton1_TestEventrg(object sender, TestEventrgs e)
        {
            string tool = string.Format("危险提示：{0}你小子别狂点，仗着{1}岁手速快是吧!?", e.Name, e.Age);
            MessageBox.Show(tool);
        }

        private void myButton1_Click(object sender, EventArgs e)
        {
            ClickNuM++;
            if (ClickNuM > 5)
            {               
              myButton1_TestEventrg(this, new TestEventrgs("lang", 88));
              ClickNuM = 0;
            }
        }
    }
}

运行之后，狂点。触发