i tried one thing to get the addition between two date
i creat three texts. text1,text2 and text3
and one Command button
i wrote the code in button1
then when i wrote in text1, date like this format dd/mm/yy and same thig with text2 dd/mm/yy
i got just the addition around day
i got just 26!!
but what i would to get the additon to whole date (dd/mm/yy +dd/mm/yy =dd/mm/yy )