Heelp urgent: Somebody can tell me why my script did not work. Fetch data from a father form

Heelp urgent: Somebody can tell me why my script did not work. Fetch data from a father form

Hello

I have dificulties to retrive data from a father form, because the system not retrive me the information I need.

I puted the following code in the look up field on user input action:

if (input.Correo_Electronico1  !=  null)
{
    tempo  =  Principal  [Correo_Electr_nico == input.Correo_Electronico1.toString()];
    input.Nombre_Completo1 = tempo.Nombre_Completo;
    input.Estatus1 = tempo.Estatus;
    disable Estatus1;
}

Somebody please heeelp me, is urgent