1 // https://stackoverflow.com/questions/6055038/how-to-clone-control-event-handlers-at-run-time 2 // "C:\Program Files (x86)\MSBuild\14.0\Bin\csc.exe" /t:winexe /out:cloneevents.exe cloneevents.cs && start "cloneevents.exe" cloneevents.exe 3 using System; 4 using System.ComponentModel; 5 using System.Reflection; 6 using System.Windows.Forms; 7  8 static class Program { 9     [STAThread]10     public static void Main(params string[] args){11         Application.Run(new Form1());12     }13 14     public static void CloneEvents(Control targetControl, Control activeContorl) {15         FieldInfo eventsField = typeof(Component).GetField("events", BindingFlags.NonPublic | BindingFlags.Instance);16         object eventHandlers = eventsField.GetValue(targetControl);17         eventsField.SetValue(activeContorl, eventHandlers);18     }19 }20 21 22 public class Form1 : Form {23     Button _btn1= new Button { Text = "btn1", Left = 20, Top = 10, Width = 180 };24     Button _btn2 = new Button { Text = "clone btn1's click event", Left = 20, Top = 40, Width = 180 };25 26     public Form1() {27         _btn1.Click+=(ss,se)=> MessageBox.Show(this, "btn1 is clicked.");28         _btn2.Click+=(ss,se)=> {29             Program.CloneEvents(_btn1, _btn2);30             MessageBox.Show(this, "Clone btn1's events OK!\nClick btn2 again.");31         };32         this.Controls.Add(_btn1);33         this.Controls.Add(_btn2);34         this.Width = 240;35         this.Height = 120;36     }37 }