How to pass parameters to a method by reflection - events

Question

Further to my precedent question, I want to pass parameters to the method "WriteTrace". But I don't know how to do this.
Here the actual code :
public class Trace
{
public void WriteTrace(object sender, EventArgs e)
{
Console.WriteLine("Trace !");
}
}
public void SubscribeEvent(Control control)
{
if (typeof(Control).IsAssignableFrom(control.GetType()))
{
Trace test = this;
MethodInfo method = typeof(Trace).GetMethod("WriteTrace");
EventInfo eventInfo = control.GetType().GetEvent("Load");
// Create the delegate on the test class because that's where the
// method is. This corresponds with `new EventHandler(test.WriteTrace)`.
Delegate handler = Delegate.CreateDelegate(eventInfo.EventHandlerType, test, method);
// Assign the eventhandler. This corresponds with `control.Load += ...`.
eventInfo.AddEventHandler(control, handler);
}
}
Now I want to get some infos in the trace :
The name of the control
The name of the event
public void WriteTrace(object sender, EventArgs e)
{
Console.WriteLine("Control : " + e.ControlName + "Event : " + e.EventName);
}
Do I create a class TraceEventArgs which derives from EventArgs with these infos ?
How to pass these infos in the method SubscribeEvent ?
Thanks for your help,
Florian
EDIT
Sorry, here now the reference to "my previous question" : Subscribe to an event with Reflection

Answer 1

Try something like this:
public void WriteTrace(object sender, EventArgs e, string eventName)
{
Control c = (Control)sender;
Console.WriteLine("Control: " + f.Name + ", Event: " + eventName);
}
public void SubscribeEvent(Control control, string eventName) {
EventInfo eInfo = control.GetType().GetEvent(eventName);
if (eInfo != null) {
// create a dummy, using a closure to capture the eventName parameter
// this is to make use of the C# closure mechanism
EventHandler dummyDelegate = (s, e) => WriteTrace(s, e, eventName);
// Delegate.Method returns the MethodInfo for the delegated method
Delegate realDelegate = Delegate.CreateDelegate(eInfo.EventHandlerType, dummyDelegate.Target, dummyDelegate.Method);
eInfo.AddEventHandler(control, realDelegate);
}
}