How to simulated "Keypress" y data loop ?

Hi,

 

I have to test a webpage made with flex. To simulated a "Keypress" I have the following line which works perfectly: 

 

Aliases["browser"]["comboubicacionCbxubicacion"]["Keys"]("[Enter]");

 

But, Before adding a little code for make a data loop (DataDriven)... The "Keyprees" event  doesn't work.

 

This is the code with data driven.

 

Aliases["browser"]["autocompletarpuntoventaCbxpuntov"]["Keys"](Project["Variables"]["TCCdd"]["Value"]("cmb_Punto_de_venta"));

 

 

How it should I simulated a "KeyPress" in data loop code ?

 

Thank in advance.