Jim,

>In order for this to be an event I have to raise an existing event. There isn't one on the grid that suites what I want to do, unless I can define a new event and when it fires. Is that possible?

Yes, this is what I was getting at, defining your own event on your control. Here's what you need to know (this is existing example I have for explaining this, so you can change the MyClick event to something more appropriate for your situation):

In your UserControl, you need the following things:

// First you must make a public EventHandler:
public event EventHandler MyClick;

// Then, when you need to fire the event in your UserControl, do this:
this.OnMyClick(new EventArgs());

// Lastly, this raises the MyClick event:
protected virtual void OnMyClick(EventArgs e)
{
	if (MyClick != null)
		MyClick(this, e);
}

Then, in your form, you just set up the usual delegates and EventHandlers:

this.oMyControl.MyClick += new System.EventHandler(this.oMyControl_MyClickHandler);

private void oMyControl_MyClickHandler(object sender, System.EventArgs e)
{
	// whatever your code needs to be
}

HTH,
~~Bonnie