Programmatically invoke an event handler for a control

To test the behavior of a custom Windows Forms button control I had created,  I had to trigger the Click event handler from code. There are multiple ways to achieve this, but I choose to combine a helper class with some convention based reflection. 

I created a static class UIHelper with the following method:

   1:  public static void TriggerEvent(Object targetObject, string eventName, EventArgs e) 

   2:  { 

   3:     String methodName = "On" + eventName; 

   4:   

   5:     MethodInfo mi = targetObject.GetType().GetMethod( 

   6:           methodName,  

   7:           BindingFlags.Instance | BindingFlags.NonPublic); 

   8:   

   9:     if (mi == null) 

  10:        throw new ArgumentException("Cannot find event named "+methodName); 

  11:   

  12:     mi.Invoke(targetObject, new object[] { e }); 

  13:  } 

In this code I took advantage of the fact that by convention event handlers are internally called by a protected method called On[EventName]. 

An example:   a Click event is triggered by the OnClick method. 

The following code will trigger the event:

   1:  UIHelper.TriggerEvent(btnTest, "Click", EventArgs.Empty());