C# 窗口委托调用方法delegate

入门级示例

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            Form2 f = new Form2（）;
            f.Show（）;
            f.eventRun += new Form2.delegateRun（f_eventRun）;
        }

        void f_eventRun（string dateTime）
        {
            textBox1.Text = dateTime;
        }

        private void Form1_Load（object sender EventArgs e）
        {

        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\bin\
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\
     文件       10752  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe
     文件       24064  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb
     文件       11600  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\bin\Release\
     文件         775  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs
     文件        2599  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form1.Designer.cs
     文件        5817  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form1.resx
     文件        1001  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form2.cs
     文件        2609  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form2.Designer.cs
     文件        5817  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\Form2.resx
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\
     文件        2164  2020-06-06 21:50  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        6392  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         542  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\GenerateResource.read.1.tlog
     文件        1332  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\GenerateResource.write.1.tlog
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\TempPE\
     文件        1438  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt
     文件       10752  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.exe
     文件         180  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Form1.resources
     文件         180  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Form2.resources
     文件       24064  2020-06-06 21:55  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.pdb
     文件         180  2020-06-06 21:53  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Properties.Resources.resources
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Release\
     文件         505  2020-06-06 21:50  WindowsFormsApplication1\WindowsFormsApplication1\Program.cs
     目录           0  2020-06-06 21:56  WindowsFormsApplication1\WindowsFormsApplication1\Properties\
............此处省略9个文件信息