Method class for deleting control events in C #

Method 1: Code /// <Summary>
/// Delete the specified event of the specified control
/// </Summary>
/// <Param name = "control"> </param>
/// <Param name = "eventname"> </param>
Public void ClearEvent (System. Windows. Forms. Control control, string eventname)
{
If (control = null) return;
If (string. IsNullOrEmpty (eventname) return;

BindingFlags mPropertyFlags = BindingFlags. Instance | BindingFlags. Public | BindingFlags. Static | BindingFlags. NonPublic;
BindingFlags mFieldFlags = BindingFlags. Static | BindingFlags. NonPublic;
Type controlType = typeof (System. Windows. Forms. Control );
PropertyInfo propertyInfo = controlType. GetProperty ("Events", mPropertyFlags );
EventHandlerList eventHandlerList = (EventHandlerList) propertyInfo. GetValue (control, null );
FieldInfo fieldInfo = (typeof (System. Windows. Forms. Control). GetField ("Event" + eventname, mFieldFlags );
Delegate d = eventHandlerList [fieldInfo. GetValue (control)];

If (d = null) return;
EventInfo eventInfo = controlType. GetEvent (eventname );

Foreach (Delegate dx in d. GetInvocationList ())
EventInfo. RemoveEventHandler (control, dx );

}

Call: ClearEvent (button1, "Click"); // This will clear all hook events of the Click Event of the button1 object.

 

Method 2: Write an operation class, record the added event list, read the list from the event list during deletion, and then delete it.