Onkeydown handler

[JohnnyKing94]

I want to know why with with the handler onkeydown there is no such propagation of the other binding events when i click any other keys that is not the "A" key??? what am i doing wrong?

MyPanel:SetHandler("OnKeyDown", function(self, key, ctrl, alt, shift, command) 
   if( key =="A")
      RUNNING NEXT LEVEL
   end
end)