KeyDown
This event is fired when a keyboard key is hit when the Grid has the focus.
KeyDown(charCode as Integer, keyCode as Integer, modifiers as Integer) as Boolean
charCode:
The charCode of the pressed key.
keyCode:
The keyCode of the pressed key.
modifiers:
Integer value representing pressed modifiers.
Return: If you want to intercept the keydown event
that is not let the Grid get it internally then
return true